def rectangular_cross_domain(*args, **kwargs):
"""
Create a rectangular domain with triangulation made
up of m+1 by n+1 uniform rectangular cells divided
into 4 triangles in a cross pattern
Arguments
m: number of cells in x direction
n: number of cells in y direction
len1: length of domain in x direction (left to right)
(default 1.0)
len2: length of domain in y direction (bottom to top)
(default 1.0)
origin: tuple (x,y) specifying location of lower left corner
of domain (default (0,0))
"""
try:
verbose = kwargs.pop('verbose')
except:
verbose = False
points, vertices, boundary = rectangular_cross(*args, **kwargs)
return Domain(points, vertices, boundary, verbose= verbose)
def _create_domain(self,d_length,
d_width,
dx,
dy,
elevation_0,
elevation_1,
stage_0,
stage_1):
points, vertices, boundary = rectangular_cross(int(d_length/dx), int(d_width/dy),
len1=d_length, len2=d_width)
domain = Domain(points, vertices, boundary)
domain.set_name('Test_Outlet_Inlet') # Output name
domain.set_store()
domain.set_default_order(2)
domain.H0 = 0.01
domain.tight_slope_limiters = 1
#print 'Size', len(domain)
#------------------------------------------------------------------------------
# Setup initial conditions
#------------------------------------------------------------------------------
def elevation(x, y):
"""Set up a elevation
"""
z = numpy.zeros(x.shape,dtype='d')
z[:] = elevation_0
numpy.putmask(z, x > d_length/2, elevation_1)
return z
def stage(x,y):
"""Set up stage
"""
z = numpy.zeros(x.shape,dtype='d')
z[:] = stage_0
numpy.putmask(z, x > d_length/2, stage_1)
return z
#print 'Setting Quantities....'
domain.set_quantity('elevation', elevation) # Use function for elevation
domain.set_quantity('stage', stage) # Use function for elevation
Br = anuga.Reflective_boundary(domain)
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
return domain
def _create_domain(self, d_length, d_width, dx, dy, elevation_0,
elevation_1, stage_0, stage_1):
points, vertices, boundary = rectangular_cross(
int(old_div(d_length, dx)),
int(old_div(d_width, dy)),
len1=d_length,
len2=d_width)
domain = Domain(points, vertices, boundary)
domain.set_name('Test_Outlet_Inlet') # Output name
domain.set_store()
domain.set_default_order(2)
domain.H0 = 0.01
domain.tight_slope_limiters = 1
#print 'Size', len(domain)
#------------------------------------------------------------------------------
# Setup initial conditions
#------------------------------------------------------------------------------
def elevation(x, y):
"""Set up a elevation
"""
z = numpy.zeros(x.shape, dtype='d')
z[:] = elevation_0
numpy.putmask(z, x > old_div(d_length, 2), elevation_1)
return z
def stage(x, y):
"""Set up stage
"""
z = numpy.zeros(x.shape, dtype='d')
z[:] = stage_0
numpy.putmask(z, x > old_div(d_length, 2), stage_1)
return z
#print 'Setting Quantities....'
domain.set_quantity('elevation',
elevation) # Use function for elevation
domain.set_quantity('stage', stage) # Use function for elevation
Br = anuga.Reflective_boundary(domain)
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
return domain
def test_merge_swwfiles(self):
from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular, \
rectangular_cross
from anuga.shallow_water.shallow_water_domain import Domain
from anuga.file.sww import SWW_file
from anuga.abstract_2d_finite_volumes.generic_boundary_conditions import \
Dirichlet_boundary
Bd = Dirichlet_boundary([0.5, 0., 0.])
# Create shallow water domain
domain = Domain(*rectangular_cross(2, 2))
domain.set_name('test1')
domain.set_quantity('elevation', 2)
domain.set_quantity('stage', 5)
domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd})
for t in domain.evolve(yieldstep=0.5, finaltime=1):
pass
domain = Domain(*rectangular(3, 3))
domain.set_name('test2')
domain.set_quantity('elevation', 3)
domain.set_quantity('stage', 50)
domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd})
for t in domain.evolve(yieldstep=0.5, finaltime=1):
pass
outfile = 'test_out.sww'
_sww_merge(['test1.sww', 'test2.sww'], outfile)
self.assertTrue(os.access(outfile, os.F_OK))
# remove temp files
if not sys.platform == 'win32':
os.remove('test1.sww')
os.remove('test2.sww')
os.remove(outfile)
def rectangular_cross_domain(*args, **kwargs):
"""
Create a rectangular domain with triangulation made
up of m+1 by n+1 uniform rectangular cells divided
into 4 triangles in a cross pattern
Arguments
m: number of cells in x direction
n: number of cells in y direction
len1: length of domain in x direction (left to right)
(default 1.0)
len2: length of domain in y direction (bottom to top)
(default 1.0)
origin: tuple (x,y) specifying location of lower left corner
of domain (default (0,0))
"""
try:
verbose = kwargs.pop('verbose')
except:
verbose = False
points, vertices, boundary = rectangular_cross(*args, **kwargs)
return Domain(points, vertices, boundary, verbose=verbose)
def test_merge_swwfiles(self):
from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular, \
rectangular_cross
from anuga.shallow_water.shallow_water_domain import Domain
from anuga.file.sww import SWW_file
from anuga.abstract_2d_finite_volumes.generic_boundary_conditions import \
Dirichlet_boundary
Bd = Dirichlet_boundary([0.5, 0., 0.])
# Create shallow water domain
domain = Domain(*rectangular_cross(2, 2))
domain.set_name('test1')
domain.set_quantity('elevation', 2)
domain.set_quantity('stage', 5)
domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd})
for t in domain.evolve(yieldstep=0.5, finaltime=1):
pass
domain = Domain(*rectangular(3, 3))
domain.set_name('test2')
domain.set_quantity('elevation', 3)
domain.set_quantity('stage', 50)
domain.set_boundary({'left': Bd, 'right': Bd, 'top': Bd, 'bottom': Bd})
for t in domain.evolve(yieldstep=0.5, finaltime=1):
pass
outfile = 'test_out.sww'
_sww_merge(['test1.sww', 'test2.sww'], outfile)
self.assertTrue(os.access(outfile, os.F_OK))
# remove temp files
if not sys.platform == 'win32':
os.remove('test1.sww')
os.remove('test2.sww')
os.remove(outfile)
def test_read_sww(self):
"""
Save to an sww file and then read back the info.
Here we store the info "uniquely"
"""
# ---------------------------------------------------------------------
# Import necessary modules
# ---------------------------------------------------------------------
from anuga.abstract_2d_finite_volumes.mesh_factory import rectangular_cross
from anuga.shallow_water.shallow_water_domain import Domain
from anuga import Reflective_boundary
from anuga.abstract_2d_finite_volumes.generic_boundary_conditions import Dirichlet_boundary, Time_boundary
# ---------------------------------------------------------------------
# Setup computational domain
# ---------------------------------------------------------------------
length = 8.0
width = 4.0
dx = dy = 2 # Resolution: Length of subdivisions on both axes
inc = 0.05 # Elevation increment
points, vertices, boundary = rectangular_cross(int(length / dx), int(width / dy), len1=length, len2=width)
domain = Domain(points, vertices, boundary)
domain.set_name("read_sww_test" + str(domain.processor)) # Output name
domain.set_quantities_to_be_stored({"elevation": 2, "stage": 2, "xmomentum": 2, "ymomentum": 2, "friction": 1})
domain.set_store_vertices_uniquely(True)
# ---------------------------------------------------------------------
# Setup initial conditions
# ---------------------------------------------------------------------
domain.set_quantity("elevation", 0.0) # Flat bed initially
domain.set_quantity("friction", 0.01) # Constant friction
domain.set_quantity("stage", 0.0) # Dry initial condition
# ------------------------------------------------------------------
# Setup boundary conditions
# ------------------------------------------------------------------
Bi = Dirichlet_boundary([0.4, 0, 0]) # Inflow
Br = Reflective_boundary(domain) # Solid reflective wall
Bo = Dirichlet_boundary([-5, 0, 0]) # Outflow
domain.set_boundary({"left": Bi, "right": Bo, "top": Br, "bottom": Br})
# -------------------------------------------------------------------
# Evolve system through time
# -------------------------------------------------------------------
for t in domain.evolve(yieldstep=1, finaltime=4.0):
pass
# Check that quantities have been stored correctly
source = domain.get_name() + ".sww"
# x = fid.variables['x'][:]
# y = fid.variables['y'][:]
# stage = fid.variables['stage'][:]
# elevation = fid.variables['elevation'][:]
# fid.close()
# assert len(stage.shape) == 2
# assert len(elevation.shape) == 2
# M, N = stage.shape
sww_file = sww.Read_sww(source)
# print 'last frame number',sww_file.get_last_frame_number()
assert num.allclose(sww_file.x, domain.get_vertex_coordinates()[:, 0])
assert num.allclose(sww_file.y, domain.get_vertex_coordinates()[:, 1])
assert num.allclose(sww_file.time, [0.0, 1.0, 2.0, 3.0, 4.0])
M = domain.get_number_of_triangles()
assert num.allclose(num.reshape(num.arange(3 * M), (M, 3)), sww_file.vertices)
last_frame_number = sww_file.get_last_frame_number()
assert last_frame_number == 4
assert num.allclose(sww_file.get_bounds(), [0.0, length, 0.0, width])
assert "stage" in sww_file.quantities.keys()
assert "friction" in sww_file.quantities.keys()
assert "elevation" in sww_file.quantities.keys()
assert "xmomentum" in sww_file.quantities.keys()
assert "ymomentum" in sww_file.quantities.keys()
for qname, q in sww_file.read_quantities(last_frame_number).items():
# print qname
# print num.linalg.norm(num.abs((domain.get_quantity(qname).get_values()-q).flatten()), ord=1)
assert num.allclose(domain.get_quantity(qname).get_values(), q)
# -----------------------------------------
# Start the evolution off again at frame 3
# -----------------------------------------
sww_file.read_quantities(last_frame_number - 1)
points, vertices, boundary = rectangular_cross(int(length / dx), int(width / dy), len1=length, len2=width)
new_domain = Domain(points, vertices, boundary)
new_domain.set_quantities_to_be_stored(None)
new_domain.set_store_vertices_uniquely(True)
for qname, q in sww_file.read_quantities(last_frame_number - 1).items():
new_domain.set_quantity(qname, q)
# ------------------------------------------------------------------
# Setup boundary conditions
# ------------------------------------------------------------------
Bi = Dirichlet_boundary([0.4, 0, 0]) # Inflow
Br = Reflective_boundary(new_domain) # Solid reflective wall
Bo = Dirichlet_boundary([-5, 0, 0]) # Outflow
new_domain.set_boundary({"left": Bi, "right": Bo, "top": Br, "bottom": Br})
# -------------------------------------------------------------------
# Evolve system through time
# -------------------------------------------------------------------
for t in new_domain.evolve(yieldstep=1.0, finaltime=1.0):
pass
# Compare new_domain and domain quantities
for quantity in domain.get_quantity_names():
dv = domain.get_quantity(quantity).get_values()
ndv = new_domain.get_quantity(quantity).get_values()
# print dv-ndv
assert num.allclose(dv, ndv, rtol=5.0e-2, atol=5.0e-2)
def test_momentum_jet(self):
"""test_momentum_jet
Test that culvert_class can accept keyword use_momentum_jet
This does not yet imply that the values have been tested. FIXME
"""
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length / dx),
int(width / dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_culvert_shallow') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
"""
# General Slope of Topography
z = -x / 1000
N = len(x)
for i in range(N):
# Sloping Embankment Across Channel
if 5.0 < x[i] < 10.1:
# Cut Out Segment for Culvert face
if 1.0 + (x[i] - 5.0) / 5.0 < y[i] < 4.0 - (x[i] -
5.0) / 5.0:
z[i] = z[i]
else:
z[i] += 0.5 * (x[i] - 5.0) # Sloping Segment U/S Face
if 10.0 < x[i] < 12.1:
z[i] += 2.5 # Flat Crest of Embankment
if 12.0 < x[i] < 14.5:
# Cut Out Segment for Culvert face
if 2.0 - (x[i] - 12.0) / 2.5 < y[i] < 3.0 + (x[i] -
12.0) / 2.5:
z[i] = z[i]
else:
z[i] += 2.5 - 1.0 * (x[i] - 12.0) # Sloping D/S Face
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity(
'stage', expression='elevation + 1.0') # Shallow initial condition
# Boyd culvert
culvert = Culvert_flow(
domain,
label='Culvert No. 1',
description='This culvert is a test unit 1.2m Wide by 0.75m High',
end_point0=[9.0, 2.5],
end_point1=[13.0, 2.5],
width=1.20,
height=0.75,
culvert_routine=boyd_generalised_culvert_model,
number_of_barrels=1,
use_momentum_jet=True,
update_interval=2,
verbose=False)
domain.forcing_terms.append(culvert)
# Call
culvert(domain)
#-----------------------------------------------------------------------
# Setup boundary conditions
#-----------------------------------------------------------------------
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
#-----------------------------------------------------------------------
# Evolve system through time
#-----------------------------------------------------------------------
ref_volume = domain.get_quantity('stage').get_integral()
for t in domain.evolve(yieldstep=0.1, finaltime=25):
new_volume = domain.get_quantity('stage').get_integral()
msg = (
'Total volume has changed: Is %.8f m^3 should have been %.8f m^3'
% (new_volume, ref_volume))
assert num.allclose(new_volume, ref_volume, rtol=1.0e-10), msg
def test_that_culvert_dry_bed_boyd_does_not_produce_flow(self):
"""test_that_culvert_in_dry_bed_boyd_does_not_produce_flow(self):
Test that culvert on a sloping dry bed doesn't produce flows
although there will be a 'pressure' head due to delta_w > 0
This one is using the 'Boyd' variant
"""
path = get_pathname_from_package('anuga.culvert_flows')
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length / dx),
int(width / dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_culvert_dry') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
"""
# General Slope of Topography
z = -x / 1000
N = len(x)
for i in range(N):
# Sloping Embankment Across Channel
if 5.0 < x[i] < 10.1:
# Cut Out Segment for Culvert face
if 1.0 + (x[i] - 5.0) / 5.0 < y[i] < 4.0 - (x[i] -
5.0) / 5.0:
z[i] = z[i]
else:
z[i] += 0.5 * (x[i] - 5.0) # Sloping Segment U/S Face
if 10.0 < x[i] < 12.1:
z[i] += 2.5 # Flat Crest of Embankment
if 12.0 < x[i] < 14.5:
# Cut Out Segment for Culvert face
if 2.0 - (x[i] - 12.0) / 2.5 < y[i] < 3.0 + (x[i] -
12.0) / 2.5:
z[i] = z[i]
else:
z[i] += 2.5 - 1.0 * (x[i] - 12.0) # Sloping D/S Face
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation') # Dry initial condition
filename = os.path.join(path, 'example_rating_curve.csv')
culvert = Culvert_flow(
domain,
label='Culvert No. 1',
description='This culvert is a test unit 1.2m Wide by 0.75m High',
end_point0=[9.0, 2.5],
end_point1=[13.0, 2.5],
width=1.20,
height=0.75,
culvert_routine=boyd_generalised_culvert_model,
number_of_barrels=1,
update_interval=2,
verbose=False)
domain.forcing_terms.append(culvert)
#-----------------------------------------------------------------------
# Setup boundary conditions
#-----------------------------------------------------------------------
# Inflow based on Flow Depth and Approaching Momentum
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
#-----------------------------------------------------------------------
# Evolve system through time
#-----------------------------------------------------------------------
ref_volume = domain.get_quantity('stage').get_integral()
for t in domain.evolve(yieldstep=1, finaltime=25):
new_volume = domain.get_quantity('stage').get_integral()
msg = 'Total volume has changed'
assert num.allclose(new_volume, ref_volume, rtol=1.0e-10), msg
pass
def test_predicted_boyd_flow(self):
"""test_predicted_boyd_flow
Test that flows predicted by the boyd method are consistent with what what
is calculated in engineering codes.
The data was supplied by Petar Milevski
"""
# FIXME(Ole) this is nowhere near finished
path = get_pathname_from_package('anuga.culvert_flows')
length = 12.
width = 5.
dx = dy = 0.5 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length / dx),
int(width / dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('test_culvert') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
# General Slope of Topography
z = -x / 10
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage', expression='elevation')
Q0 = domain.get_quantity('stage')
Q1 = Quantity(domain)
# Add depths to stage
head_water_depth = 0.169
tail_water_depth = 0.089
inlet_poly = [[0, 0], [6, 0], [6, 5], [0, 5]]
outlet_poly = [[6, 0], [12, 0], [12, 5], [6, 5]]
Q1.set_values(
Polygon_function([(inlet_poly, head_water_depth),
(outlet_poly, tail_water_depth)]))
domain.set_quantity('stage', Q0 + Q1)
culvert = Culvert_flow(domain,
label='Test culvert',
description='4 m test culvert',
end_point0=[4.0, 2.5],
end_point1=[8.0, 2.5],
width=1.20,
height=0.75,
culvert_routine=boyd_generalised_culvert_model,
number_of_barrels=1,
verbose=False)
domain.forcing_terms.append(culvert)
# Call
culvert(domain)
def run_simulation(parallel=False,
control_data=None,
test_points=None,
verbose=False):
success = True
##-----------------------------------------------------------------------
## Setup domain
##-----------------------------------------------------------------------
points, vertices, boundary = rectangular_cross(int(length / dx),
int(width / dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
#rm *.swwdomain.set_name('output_parallel_inlet_operator') # Output name
domain.set_store(False)
domain.set_default_order(2)
##-----------------------------------------------------------------------
## Distribute domain
##-----------------------------------------------------------------------
if parallel:
domain = distribute(domain)
#domain.dump_triangulation("frac_op_domain.png")
##-----------------------------------------------------------------------
## Setup boundary conditions
##-----------------------------------------------------------------------
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation') # Dry initial condition
Bi = anuga.Dirichlet_boundary([5.0, 0.0, 0.0])
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
##-----------------------------------------------------------------------
## Determine triangle index coinciding with test points
##-----------------------------------------------------------------------
assert (test_points is not None)
assert (len(test_points) == samples)
tri_ids = []
for point in test_points:
try:
k = domain.get_triangle_containing_point(point)
if domain.tri_full_flag[k] == 1:
tri_ids.append(k)
else:
tri_ids.append(-1)
except:
tri_ids.append(-2)
if verbose: print 'P%d has points = %s' % (myid, tri_ids)
if not parallel: control_data = []
################ Define Fractional Operators ##########################
inlet0 = None
inlet1 = None
boyd_box0 = None
inlet0 = Inlet_operator(domain, line0, Q0, verbose=False, default=0.0)
inlet1 = Inlet_operator(domain, line1, Q1, verbose=False)
if inlet0 is not None and verbose: inlet0.print_statistics()
if inlet1 is not None and verbose: inlet1.print_statistics()
#if boyd_box0 is not None and verbose: boyd_box0.print_statistics()
##-----------------------------------------------------------------------
## Evolve system through time
##-----------------------------------------------------------------------
for t in domain.evolve(yieldstep=2.0, finaltime=40.0):
if myid == 0 and verbose:
domain.write_time()
#print domain.volumetric_balance_statistics()
stage = domain.get_quantity('stage')
#if boyd_box0 is not None and verbose : boyd_box0.print_timestepping_statistics()
#for i in range(samples):
# if tri_ids[i] >= 0:
# if verbose: print 'P%d tri %d, value = %s' %(myid, i, stage.centroid_values[tri_ids[i]])
sys.stdout.flush()
pass
domain.sww_merge(delete_old=True)
success = True
##-----------------------------------------------------------------------
## Assign/Test Control data
##-----------------------------------------------------------------------
if not parallel:
stage = domain.get_quantity('stage')
for i in range(samples):
assert (tri_ids[i] >= 0)
control_data.append(stage.centroid_values[tri_ids[i]])
if inlet0 is not None:
control_data.append(inlet0.inlet.get_average_stage())
control_data.append(inlet0.inlet.get_average_xmom())
control_data.append(inlet0.inlet.get_average_ymom())
control_data.append(inlet0.inlet.get_total_water_volume())
control_data.append(inlet0.inlet.get_average_depth())
if verbose: print 'P%d control_data = %s' % (myid, control_data)
else:
stage = domain.get_quantity('stage')
for i in range(samples):
if tri_ids[i] >= 0:
local_success = num.allclose(control_data[i],
stage.centroid_values[tri_ids[i]])
success = success and local_success
if verbose:
print 'P%d tri %d, control = %s, actual = %s, Success = %s' % (
myid, i, control_data[i],
stage.centroid_values[tri_ids[i]], local_success)
if inlet0 is not None:
inlet_master_proc = inlet0.inlet.get_master_proc()
average_stage = inlet0.inlet.get_global_average_stage()
average_xmom = inlet0.inlet.get_global_average_xmom()
average_ymom = inlet0.inlet.get_global_average_ymom()
average_volume = inlet0.inlet.get_global_total_water_volume()
average_depth = inlet0.inlet.get_global_average_depth()
if myid == inlet_master_proc:
if verbose:
print 'P%d average stage, control = %s, actual = %s' % (
myid, control_data[samples], average_stage)
print 'P%d average xmom, control = %s, actual = %s' % (
myid, control_data[samples + 1], average_xmom)
print 'P%d average ymom, control = %s, actual = %s' % (
myid, control_data[samples + 2], average_ymom)
print 'P%d average volume, control = %s, actual = %s' % (
myid, control_data[samples + 3], average_volume)
print 'P%d average depth, control = %s, actual = %s' % (
myid, control_data[samples + 4], average_depth)
assert (success)
return control_data
#------------------------------------------------------------------------------
# Setup computational domain
#------------------------------------------------------------------------------
print('Setting up domain')
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
#dx = dy = .5 # Resolution: Length of subdivisions on both axes
#dx = dy = .5 # Resolution: Length of subdivisions on both axes
#dx = dy = .1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(old_div(length, dx)),
int(old_div(width, dy)),
len1=length,
len2=width)
domain = Domain(points, vertices, boundary)
domain.set_name('Test_Culv_Flat_WL') # Output name
domain.set_default_order(2)
domain.H0 = 0.01
domain.tight_slope_limiters = 1
print('Size', len(domain))
#------------------------------------------------------------------------------
# Setup initial conditions
#------------------------------------------------------------------------------
def topography(x, y):
def test_that_culvert_dry_bed_boyd_does_not_produce_flow(self):
"""test_that_culvert_in_dry_bed_boyd_does_not_produce_flow(self):
Test that culvert on a sloping dry bed doesn't produce flows
although there will be a 'pressure' head due to delta_w > 0
This one is using the 'Boyd' variant
"""
path = get_pathname_from_package('anuga.culvert_flows')
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length/dx),
int(width/dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_culvert_dry') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
"""
# General Slope of Topography
z=-x/1000
N = len(x)
for i in range(N):
# Sloping Embankment Across Channel
if 5.0 < x[i] < 10.1:
# Cut Out Segment for Culvert face
if 1.0+(x[i]-5.0)/5.0 < y[i] < 4.0 - (x[i]-5.0)/5.0:
z[i]=z[i]
else:
z[i] += 0.5*(x[i] -5.0) # Sloping Segment U/S Face
if 10.0 < x[i] < 12.1:
z[i] += 2.5 # Flat Crest of Embankment
if 12.0 < x[i] < 14.5:
# Cut Out Segment for Culvert face
if 2.0-(x[i]-12.0)/2.5 < y[i] < 3.0 + (x[i]-12.0)/2.5:
z[i]=z[i]
else:
z[i] += 2.5-1.0*(x[i] -12.0) # Sloping D/S Face
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation') # Dry initial condition
filename = os.path.join(path, 'example_rating_curve.csv')
culvert = Culvert_flow(domain,
label='Culvert No. 1',
description='This culvert is a test unit 1.2m Wide by 0.75m High',
end_point0=[9.0, 2.5],
end_point1=[13.0, 2.5],
width=1.20, height=0.75,
culvert_routine=boyd_generalised_culvert_model,
number_of_barrels=1,
update_interval=2,
verbose=False)
domain.forcing_terms.append(culvert)
#-----------------------------------------------------------------------
# Setup boundary conditions
#-----------------------------------------------------------------------
# Inflow based on Flow Depth and Approaching Momentum
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
#-----------------------------------------------------------------------
# Evolve system through time
#-----------------------------------------------------------------------
ref_volume = domain.get_quantity('stage').get_integral()
for t in domain.evolve(yieldstep = 1, finaltime = 25):
new_volume = domain.get_quantity('stage').get_integral()
msg = 'Total volume has changed'
assert num.allclose(new_volume, ref_volume, rtol=1.0e-10), msg
pass
def test_momentum_jet(self):
"""test_momentum_jet
Test that culvert_class can accept keyword use_momentum_jet
This does not yet imply that the values have been tested. FIXME
"""
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length/dx),
int(width/dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_culvert_shallow') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
"""
# General Slope of Topography
z=-x/1000
N = len(x)
for i in range(N):
# Sloping Embankment Across Channel
if 5.0 < x[i] < 10.1:
# Cut Out Segment for Culvert face
if 1.0+(x[i]-5.0)/5.0 < y[i] < 4.0 - (x[i]-5.0)/5.0:
z[i]=z[i]
else:
z[i] += 0.5*(x[i] -5.0) # Sloping Segment U/S Face
if 10.0 < x[i] < 12.1:
z[i] += 2.5 # Flat Crest of Embankment
if 12.0 < x[i] < 14.5:
# Cut Out Segment for Culvert face
if 2.0-(x[i]-12.0)/2.5 < y[i] < 3.0 + (x[i]-12.0)/2.5:
z[i]=z[i]
else:
z[i] += 2.5-1.0*(x[i] -12.0) # Sloping D/S Face
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation + 1.0') # Shallow initial condition
# Boyd culvert
culvert = Culvert_flow(domain,
label='Culvert No. 1',
description='This culvert is a test unit 1.2m Wide by 0.75m High',
end_point0=[9.0, 2.5],
end_point1=[13.0, 2.5],
width=1.20, height=0.75,
culvert_routine=boyd_generalised_culvert_model,
number_of_barrels=1,
use_momentum_jet=True,
update_interval=2,
verbose=False)
domain.forcing_terms.append(culvert)
# Call
culvert(domain)
#-----------------------------------------------------------------------
# Setup boundary conditions
#-----------------------------------------------------------------------
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
#-----------------------------------------------------------------------
# Evolve system through time
#-----------------------------------------------------------------------
ref_volume = domain.get_quantity('stage').get_integral()
for t in domain.evolve(yieldstep = 0.1, finaltime = 25):
new_volume = domain.get_quantity('stage').get_integral()
msg = ('Total volume has changed: Is %.8f m^3 should have been %.8f m^3'
% (new_volume, ref_volume))
assert num.allclose(new_volume, ref_volume, rtol=1.0e-10), msg
def test_read_sww(self):
"""
Save to an sww file and then read back the info.
Here we store the info "uniquely"
"""
#---------------------------------------------------------------------
# Import necessary modules
#---------------------------------------------------------------------
from anuga.abstract_2d_finite_volumes.mesh_factory import \
rectangular_cross
from anuga.shallow_water.shallow_water_domain import Domain
from anuga import Reflective_boundary
from anuga.abstract_2d_finite_volumes.generic_boundary_conditions\
import Dirichlet_boundary, Time_boundary
#---------------------------------------------------------------------
# Setup computational domain
#---------------------------------------------------------------------
length = 8.
width = 4.
dx = dy = 2 # Resolution: Length of subdivisions on both axes
inc = 0.05 # Elevation increment
points, vertices, boundary = rectangular_cross(int(length/dx),
int(width/dy),
len1=length,
len2=width)
domain = Domain(points, vertices, boundary)
domain.set_name('read_sww_test'+str(domain.processor)) # Output name
domain.set_quantities_to_be_stored({'elevation': 2,
'stage': 2,
'xmomentum': 2,
'ymomentum': 2,
'friction': 1})
domain.set_store_vertices_uniquely(True)
#---------------------------------------------------------------------
# Setup initial conditions
#---------------------------------------------------------------------
domain.set_quantity('elevation', 0.0) # Flat bed initially
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage', 0.0) # Dry initial condition
#------------------------------------------------------------------
# Setup boundary conditions
#------------------------------------------------------------------
Bi = Dirichlet_boundary([0.4, 0, 0]) # Inflow
Br = Reflective_boundary(domain) # Solid reflective wall
Bo = Dirichlet_boundary([-5, 0, 0]) # Outflow
domain.set_boundary({'left': Bi, 'right': Bo, 'top': Br, 'bottom': Br})
#-------------------------------------------------------------------
# Evolve system through time
#-------------------------------------------------------------------
for t in domain.evolve(yieldstep=1, finaltime=4.0):
pass
# Check that quantities have been stored correctly
source = domain.get_name() + '.sww'
#x = fid.variables['x'][:]
#y = fid.variables['y'][:]
#stage = fid.variables['stage'][:]
#elevation = fid.variables['elevation'][:]
#fid.close()
#assert len(stage.shape) == 2
#assert len(elevation.shape) == 2
#M, N = stage.shape
sww_file = sww.Read_sww(source)
#print 'last frame number',sww_file.get_last_frame_number()
assert num.allclose(sww_file.x, domain.get_vertex_coordinates()[:,0])
assert num.allclose(sww_file.y, domain.get_vertex_coordinates()[:,1])
assert num.allclose(sww_file.time, [0.0, 1.0, 2.0, 3.0, 4.0])
M = domain.get_number_of_triangles()
assert num.allclose(num.reshape(num.arange(3*M), (M,3)), sww_file.vertices)
last_frame_number = sww_file.get_last_frame_number()
assert last_frame_number == 4
assert num.allclose(sww_file.get_bounds(), [0.0, length, 0.0, width])
assert 'stage' in sww_file.quantities.keys()
assert 'friction' in sww_file.quantities.keys()
assert 'elevation' in sww_file.quantities.keys()
assert 'xmomentum' in sww_file.quantities.keys()
assert 'ymomentum' in sww_file.quantities.keys()
for qname, q in sww_file.read_quantities(last_frame_number).items():
#print qname
#print num.linalg.norm(num.abs((domain.get_quantity(qname).get_values()-q).flatten()), ord=1)
assert num.allclose(domain.get_quantity(qname).get_values(), q)
#-----------------------------------------
# Start the evolution off again at frame 3
#-----------------------------------------
sww_file.read_quantities(last_frame_number-1)
points, vertices, boundary = rectangular_cross(int(length/dx),
int(width/dy),
len1=length,
len2=width)
new_domain = Domain(points, vertices, boundary)
new_domain.set_quantities_to_be_stored(None)
new_domain.set_store_vertices_uniquely(True)
for qname, q in sww_file.read_quantities(last_frame_number-1).items():
new_domain.set_quantity(qname, q)
#------------------------------------------------------------------
# Setup boundary conditions
#------------------------------------------------------------------
Bi = Dirichlet_boundary([0.4, 0, 0]) # Inflow
Br = Reflective_boundary(new_domain) # Solid reflective wall
Bo = Dirichlet_boundary([-5, 0, 0]) # Outflow
new_domain.set_boundary({'left': Bi, 'right': Bo, 'top': Br, 'bottom': Br})
#-------------------------------------------------------------------
# Evolve system through time
#-------------------------------------------------------------------
for t in new_domain.evolve(yieldstep=1.0, finaltime=1.0):
pass
# Compare new_domain and domain quantities
for quantity in domain.get_quantity_names():
dv = domain.get_quantity(quantity).get_values()
ndv = new_domain.get_quantity(quantity).get_values()
#print dv-ndv
assert num.allclose( dv, ndv, rtol=5.e-2, atol=5.e-2)
def test_that_culvert_runs_rating(self):
"""test_that_culvert_runs_rating
This test exercises the culvert and checks values outside rating curve
are dealt with
"""
path = get_pathname_from_package('anuga.culvert_flows')
path = os.path.join(path, 'tests', 'data')
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length/dx),
int(width/dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_culvert') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
"""
# General Slope of Topography
z=-x/1000
N = len(x)
for i in range(N):
# Sloping Embankment Across Channel
if 5.0 < x[i] < 10.1:
# Cut Out Segment for Culvert face
if 1.0+(x[i]-5.0)/5.0 < y[i] < 4.0 - (x[i]-5.0)/5.0:
z[i]=z[i]
else:
z[i] += 0.5*(x[i] -5.0) # Sloping Segment U/S Face
if 10.0 < x[i] < 12.1:
z[i] += 2.5 # Flat Crest of Embankment
if 12.0 < x[i] < 14.5:
# Cut Out Segment for Culvert face
if 2.0-(x[i]-12.0)/2.5 < y[i] < 3.0 + (x[i]-12.0)/2.5:
z[i]=z[i]
else:
z[i] += 2.5-1.0*(x[i] -12.0) # Sloping D/S Face
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation') # Dry initial condition
filename=os.path.join(path, 'example_rating_curve.csv')
culvert = Culvert_flow(domain,
culvert_description_filename=filename,
end_point0=[9.0, 2.5],
end_point1=[13.0, 2.5],
width=1.00,
use_velocity_head=True,
verbose=False)
domain.forcing_terms.append(culvert)
#-----------------------------------------------------------------------
# Setup boundary conditions
#-----------------------------------------------------------------------
# Inflow based on Flow Depth and Approaching Momentum
Bi = anuga.Dirichlet_boundary([0.0, 0.0, 0.0])
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
Bo = anuga.Dirichlet_boundary([-5, 0, 0]) # Outflow
# Upstream and downstream conditions that will exceed the rating curve
# I.e produce delta_h outside the range [0, 10] specified in the the
# file example_rating_curve.csv
Btus = anuga.Time_boundary(domain, \
lambda t: [100*num.sin(2*pi*(t-4)/10), 0.0, 0.0])
Btds = anuga.Time_boundary(domain, \
lambda t: [-5*(num.cos(2*pi*(t-4)/20)), 0.0, 0.0])
domain.set_boundary({'left': Btus, 'right': Btds, 'top': Br, 'bottom': Br})
#-----------------------------------------------------------------------
# Evolve system through time
#-----------------------------------------------------------------------
min_delta_w = sys.maxint
max_delta_w = -min_delta_w
for t in domain.evolve(yieldstep = 1, finaltime = 25):
delta_w = culvert.inlet.stage - culvert.outlet.stage
if delta_w > max_delta_w: max_delta_w = delta_w
if delta_w < min_delta_w: min_delta_w = delta_w
pass
# Check that extreme values in rating curve have been exceeded
# so that we know that condition has been exercised
assert min_delta_w < 0
assert max_delta_w > 10
os.remove('Test_culvert.sww')
def run_simulation(parallel = False, control_data = None, test_points = None, verbose = False):
success = True
##-----------------------------------------------------------------------
## Setup domain
##-----------------------------------------------------------------------
points, vertices, boundary = rectangular_cross(int(length/dx),
int(width/dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
#domain.set_name('output_parallel_boyd_pipe_op') # Output name
domain.set_store(False)
domain.set_default_order(2)
##-----------------------------------------------------------------------
## Distribute domain
##-----------------------------------------------------------------------
if parallel:
domain = distribute(domain)
#domain.dump_triangulation("boyd_pipe_domain.png")
##-----------------------------------------------------------------------
## Setup boundary conditions
##-----------------------------------------------------------------------
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation') # Dry initial condition
Bi = anuga.Dirichlet_boundary([5.0, 0.0, 0.0])
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
##-----------------------------------------------------------------------
## Determine triangle index coinciding with test points
##-----------------------------------------------------------------------
assert(test_points is not None)
assert(len(test_points) == samples)
tri_ids = []
for point in test_points:
try:
k = domain.get_triangle_containing_point(point)
if domain.tri_full_flag[k] == 1:
tri_ids.append(k)
else:
tri_ids.append(-1)
except:
tri_ids.append(-2)
if verbose: print 'P%d has points = %s' %(myid, tri_ids)
if not parallel: control_data = []
################ Define Fractional Operators ##########################
inlet0 = None
inlet1 = None
boyd_pipe0 = None
inlet0 = Inlet_operator(domain, line0, Q0, verbose = False)
inlet1 = Inlet_operator(domain, line1, Q1, verbose = False)
# Enquiry point [ 19. 2.5] is contained in two domains in 4 proc case
boyd_pipe0 = Boyd_pipe_operator(domain,
end_points=[[9.0, 2.5],[19.0, 2.5]],
losses=1.5,
diameter=5.0,
apron=5.0,
use_momentum_jet=True,
use_velocity_head=False,
manning=0.013,
verbose=False)
if inlet0 is not None and verbose: inlet0.print_statistics()
if inlet1 is not None and verbose: inlet1.print_statistics()
if boyd_pipe0 is not None and verbose: boyd_pipe0.print_statistics()
# if parallel:
# factory = Parallel_operator_factory(domain, verbose = True)
#
# inlet0 = factory.inlet_operator_factory(line0, Q0)
# inlet1 = factory.inlet_operator_factory(line1, Q1)
#
# boyd_box0 = factory.boyd_box_operator_factory(end_points=[[9.0, 2.5],[19.0, 2.5]],
# losses=1.5,
# width=1.5,
# apron=5.0,
# use_momentum_jet=True,
# use_velocity_head=False,
# manning=0.013,
# verbose=False)
#
# else:
# inlet0 = Inlet_operator(domain, line0, Q0)
# inlet1 = Inlet_operator(domain, line1, Q1)
#
# # Enquiry point [ 19. 2.5] is contained in two domains in 4 proc case
# boyd_box0 = Boyd_box_operator(domain,
# end_points=[[9.0, 2.5],[19.0, 2.5]],
# losses=1.5,
# width=1.5,
# apron=5.0,
# use_momentum_jet=True,
# use_velocity_head=False,
# manning=0.013,
# verbose=False)
#######################################################################
##-----------------------------------------------------------------------
## Evolve system through time
##-----------------------------------------------------------------------
for t in domain.evolve(yieldstep = 2.0, finaltime = 20.0):
if myid == 0 and verbose:
domain.write_time()
#print domain.volumetric_balance_statistics()
stage = domain.get_quantity('stage')
if boyd_pipe0 is not None and verbose : boyd_pipe0.print_timestepping_statistics()
#for i in range(samples):
# if tri_ids[i] >= 0:
# if verbose: print 'P%d tri %d, value = %s' %(myid, i, stage.centroid_values[tri_ids[i]])
sys.stdout.flush()
pass
success = True
##-----------------------------------------------------------------------
## Assign/Test Control data
##-----------------------------------------------------------------------
if not parallel:
stage = domain.get_quantity('stage')
for i in range(samples):
assert(tri_ids[i] >= 0)
control_data.append(stage.centroid_values[tri_ids[i]])
if inlet0 is not None:
control_data.append(inlet0.inlet.get_average_stage())
control_data.append(inlet0.inlet.get_average_xmom())
control_data.append(inlet0.inlet.get_average_ymom())
control_data.append(inlet0.inlet.get_total_water_volume())
control_data.append(inlet0.inlet.get_average_depth())
if verbose: print 'P%d control_data = %s' %(myid, control_data)
else:
stage = domain.get_quantity('stage')
for i in range(samples):
if tri_ids[i] >= 0:
local_success = num.allclose(control_data[i], stage.centroid_values[tri_ids[i]])
success = success and local_success
if verbose:
print 'P%d tri %d, control = %s, actual = %s, Success = %s' %(myid, i, control_data[i], stage.centroid_values[tri_ids[i]], local_success)
if inlet0 is not None:
inlet_master_proc = inlet0.inlet.get_master_proc()
average_stage = inlet0.inlet.get_global_average_stage()
average_xmom = inlet0.inlet.get_global_average_xmom()
average_ymom = inlet0.inlet.get_global_average_ymom()
average_volume = inlet0.inlet.get_global_total_water_volume()
average_depth = inlet0.inlet.get_global_average_depth()
if myid == inlet_master_proc:
if verbose:
print 'P%d average stage, control = %s, actual = %s' %(myid, control_data[samples], average_stage)
print 'P%d average xmom, control = %s, actual = %s' %(myid, control_data[samples+1], average_xmom)
print 'P%d average ymom, control = %s, actual = %s' %(myid, control_data[samples+2], average_ymom)
print 'P%d average volume, control = %s, actual = %s' %(myid, control_data[samples+3], average_volume)
print 'P%d average depth, control = %s, actual = %s' %(myid, control_data[samples+4], average_depth)
assert(success)
if parallel:
finalize()
return control_data
def test_get_maximum_inundation_from_sww(self):
"""test_get_maximum_inundation_from_sww(self)
Test of get_maximum_inundation_elevation()
and get_maximum_inundation_location().
This is based on test_get_maximum_inundation_3(self) but works with the
stored results instead of with the internal data structure.
This test uses the underlying get_maximum_inundation_data for tests
"""
verbose = False
from anuga.config import minimum_storable_height
initial_runup_height = -0.4
final_runup_height = -0.3
filename = 'runup_test_2'
#--------------------------------------------------------------
# Setup computational domain
#--------------------------------------------------------------
N = 10
points, vertices, boundary = rectangular_cross(N, N)
domain = Domain(points, vertices, boundary)
domain.set_low_froude(0)
domain.set_name(filename)
domain.set_maximum_allowed_speed(1.0)
#domain.set_minimum_storable_height(1.0e-5)
domain.set_store_vertices_uniquely()
# FIXME: This works better with old limiters so far
domain.tight_slope_limiters = 0
#--------------------------------------------------------------
# Setup initial conditions
#--------------------------------------------------------------
def topography(x, y):
return old_div(-x, 2) # linear bed slope
# Use function for elevation
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.) # Zero friction
# Constant negative initial stage
domain.set_quantity('stage', initial_runup_height)
#--------------------------------------------------------------
# Setup boundary conditions
#--------------------------------------------------------------
Br = Reflective_boundary(domain) # Reflective wall
Bd = Dirichlet_boundary([final_runup_height, 0, 0]) # Constant inflow
# All reflective to begin with (still water)
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
#--------------------------------------------------------------
# Test initial inundation height
#--------------------------------------------------------------
indices = domain.get_wet_elements()
z = domain.get_quantity('elevation').\
get_values(location='centroids', indices=indices)
assert num.alltrue(z < initial_runup_height)
q_ref = domain.get_maximum_inundation_elevation(
minimum_height=minimum_storable_height)
# First order accuracy
assert num.allclose(q_ref, initial_runup_height, rtol=1.0 / N)
#--------------------------------------------------------------
# Let triangles adjust
#--------------------------------------------------------------
q_max = None
for t in domain.evolve(yieldstep=0.1, finaltime=1.0):
q = domain.get_maximum_inundation_elevation(
minimum_height=minimum_storable_height)
if verbose:
domain.write_time()
print(q)
if q is None and q_max is None:
pass
elif q_max is None or q > q_max:
q_max = q
else:
pass
#--------------------------------------------------------------
# Test inundation height again
#--------------------------------------------------------------
#q_ref = domain.get_maximum_inundation_elevation()
q = get_maximum_inundation_elevation(filename + '.sww')
msg = 'We got %f, should have been %f' % (q, q_max)
assert num.allclose(q, q_max, rtol=2.0 / N), msg
msg = 'We got %f, should have been %f' % (q, initial_runup_height)
assert num.allclose(q, initial_runup_height, rtol=1.0 / N), msg
# Test error condition if time interval is out
try:
q = get_maximum_inundation_elevation(filename + '.sww',
time_interval=[2.0, 3.0])
except ValueError:
pass
else:
msg = 'should have caught wrong time interval'
raise_(Exception, msg)
# Check correct time interval
q, loc = get_maximum_inundation_data(filename + '.sww',
time_interval=[0.0, 3.0])
msg = 'We got %f, should have been %f' % (q, initial_runup_height)
assert num.allclose(q, initial_runup_height, rtol=1.0 / N), msg
assert num.allclose(old_div(-loc[0], 2), q) # From topography formula
#--------------------------------------------------------------
# Update boundary to allow inflow
#--------------------------------------------------------------
domain.set_boundary({'right': Bd})
#--------------------------------------------------------------
# Evolve system through time
#--------------------------------------------------------------
for t in domain.evolve(yieldstep=0.1,
finaltime=3.0,
skip_initial_step=True):
q = domain.get_maximum_inundation_elevation(
minimum_height=minimum_storable_height)
if verbose:
domain.write_time()
print(q)
if q > q_max:
q_max = q
#--------------------------------------------------------------
# Test inundation height again
#--------------------------------------------------------------
indices = domain.get_wet_elements()
z = domain.get_quantity('elevation').\
get_values(location='centroids', indices=indices)
assert num.alltrue(z < final_runup_height + 1.0 / N)
q = domain.get_maximum_inundation_elevation()
# First order accuracy
assert num.allclose(q, final_runup_height, rtol=1.0 / N)
q, loc = get_maximum_inundation_data(filename + '.sww',
time_interval=[3.0, 3.0])
msg = 'We got %f, should have been %f' % (q, final_runup_height)
assert num.allclose(q, final_runup_height, rtol=1.0 / N), msg
assert num.allclose(old_div(-loc[0], 2), q) # From topography formula
q = get_maximum_inundation_elevation(filename + '.sww',
verbose=verbose)
loc = get_maximum_inundation_location(filename + '.sww')
msg = 'We got %f, should have been %f' % (q, q_max)
assert num.allclose(q, q_max, rtol=1.0 / N), msg
assert num.allclose(old_div(-loc[0], 2), q) # From topography formula
q = get_maximum_inundation_elevation(filename + '.sww',
time_interval=[0, 3])
msg = 'We got %f, should have been %f' % (q, q_max)
assert num.allclose(q, q_max, rtol=1.0 / N), msg
# Check polygon mode
# Runup region
polygon = [[0.3, 0.0], [0.9, 0.0], [0.9, 1.0], [0.3, 1.0]]
q = get_maximum_inundation_elevation(filename + '.sww',
polygon=polygon,
time_interval=[0, 3])
msg = 'We got %f, should have been %f' % (q, q_max)
assert num.allclose(q, q_max, rtol=1.0 / N), msg
# Offshore region
polygon = [[0.9, 0.0], [1.0, 0.0], [1.0, 1.0], [0.9, 1.0]]
q, loc = get_maximum_inundation_data(filename + '.sww',
polygon=polygon,
time_interval=[0, 3])
msg = 'We got %f, should have been %f' % (q, -0.475)
assert num.allclose(q, -0.475, rtol=1.0 / N), msg
assert is_inside_polygon(loc, polygon)
assert num.allclose(old_div(-loc[0], 2), q) # From topography formula
# Dry region
polygon = [[0.0, 0.0], [0.4, 0.0], [0.4, 1.0], [0.0, 1.0]]
q, loc = get_maximum_inundation_data(filename + '.sww',
polygon=polygon,
time_interval=[0, 3])
msg = 'We got %s, should have been None' % (q)
assert q is None, msg
msg = 'We got %s, should have been None' % (loc)
assert loc is None, msg
# Check what happens if no time point is within interval
try:
q = get_maximum_inundation_elevation(filename + '.sww',
time_interval=[2.75, 2.75])
except AssertionError:
pass
else:
msg = 'Time interval should have raised an exception'
raise_(Exception, msg)
# Cleanup
try:
pass
#os.remove(domain.get_name() + '.sww')
except:
pass
def _create_domain(self,d_length,
d_width,
dx,
dy,
elevation_0,
elevation_1,
stage_0,
stage_1,
xvelocity_0 = 0.0,
xvelocity_1 = 0.0,
yvelocity_0 = 0.0,
yvelocity_1 = 0.0):
points, vertices, boundary = rectangular_cross(int(d_length/dx), int(d_width/dy),
len1=d_length, len2=d_width)
domain = Domain(points, vertices, boundary)
domain.set_name('Test_Outlet_Inlet') # Output name
domain.set_store()
domain.set_default_order(2)
domain.H0 = 0.01
domain.tight_slope_limiters = 1
#print 'Size', len(domain)
#------------------------------------------------------------------------------
# Setup initial conditions
#------------------------------------------------------------------------------
def elevation(x, y):
"""Set up a elevation
"""
z = numpy.zeros(x.shape,dtype='d')
z[:] = elevation_0
numpy.putmask(z, x > d_length/2, elevation_1)
return z
def stage(x,y):
"""Set up stage
"""
z = numpy.zeros(x.shape,dtype='d')
z[:] = stage_0
numpy.putmask(z, x > d_length/2, stage_1)
return z
def xmom(x,y):
"""Set up xmomentum
"""
z = numpy.zeros(x.shape,dtype='d')
z[:] = xvelocity_0*(stage_0-elevation_0)
numpy.putmask(z, x > d_length/2, xvelocity_1*(stage_1-elevation_1) )
return z
def ymom(x,y):
"""Set up ymomentum
"""
z = numpy.zeros(x.shape,dtype='d')
z[:] = yvelocity_0*(stage_0-elevation_0)
numpy.putmask(z, x > d_length/2, yvelocity_1*(stage_1-elevation_1) )
return z
#print 'Setting Quantities....'
domain.set_quantity('elevation', elevation) # Use function for elevation
domain.set_quantity('stage', stage) # Use function for elevation
domain.set_quantity('xmomentum', xmom)
domain.set_quantity('ymomentum', ymom)
return domain
def test_earthquake_tsunami(self):
from os import sep, getenv
import sys
from anuga.abstract_2d_finite_volumes.mesh_factory \
import rectangular_cross
from anuga.abstract_2d_finite_volumes.quantity import Quantity
from anuga.utilities.system_tools import get_pathname_from_package
"""
Pick the test you want to do; T= 0 test a point source,
T= 1 test single rectangular source, T= 2 test multiple
rectangular sources
"""
# Get path where this test is run
path= get_pathname_from_package('anuga.tsunami_source')
# Choose what test to proceed
T=1
if T==0:
# Fortran output file
filename = path+sep+'tests'+sep+'data'+sep+'fullokada_SP.txt'
# Initial condition of earthquake for multiple source
x0 = 7000.0
y0 = 10000.0
length = 0
width =0
strike = 0.0
depth = 15.0
slip = 10.0
dip =15.0
rake =90.0
ns=1
NSMAX=1
elif T==1:
# Fortran output file
filename = path+sep+'tests'+sep+'data'+sep+'fullokada_SS.txt'
# Initial condition of earthquake for multiple source
x0 = 7000.0
y0 = 10000.0
length = 10.0
width =6.0
strike = 0.0
depth = 15.0
slip = 10.0
dip =15.0
rake =90.0
ns=1
NSMAX=1
elif T==2:
# Fortran output file
filename = path+sep+'tests'+sep+'data'+sep+'fullokada_MS.txt'
# Initial condition of earthquake for multiple source
x0 = [7000.0,10000.0]
y0 = [10000.0,7000.0]
length = [10.0,10.0]
width =[6.0,6.0]
strike = [0.0,0.0]
depth = [15.0,15.0]
slip = [10.0,10.0]
dip = [15.0,15.0]
rake = [90.0,90.0]
ns=2
NSMAX=2
# Get output file from original okada fortran script.
# Vertical displacement is listed under tmp.
polyline_file=open(filename,'r')
lines=polyline_file.readlines()
polyline_file.close()
tmp=[]
stage=[]
for line in lines [0:]:
field = line.split(' ')
z=float(field[2])
tmp.append(z)
# Create domain
dx = dy = 4000
l=20000
w=20000
# Create topography
def topography(x,y):
el=-1000
return el
points, vertices, boundary = rectangular_cross(int(l/dx), int(w/dy),
len1=l, len2=w)
domain = Domain(points, vertices, boundary)
domain.set_name('test')
domain.set_quantity('elevation',topography)
Ts = earthquake_tsunami(ns=ns,NSMAX=NSMAX,length=length, width=width, strike=strike,\
depth=depth,dip=dip, xi=x0, yi=y0,z0=0, slip=slip, rake=rake,\
domain=domain, verbose=False)
# Create a variable to store vertical displacement throughout the domain
tsunami = Quantity(domain)
tsunami.set_values(Ts)
interpolation_points=[]
#k=0.0
#for i in range(0,6):
# for j in range(0,6):
# p=j*4000
# Yt=p
# Xt=k
# Z=tsunami.get_values(interpolation_points=[[Xt,Yt]]
# ,location='edges')
# stage.append(-Z[0])
# k=k+4000
#
#assert allclose(stage,tmp,atol=1.e-3)
# Here's a faster way - try that in the first test
interpolation_points=[]
k=0.0
for i in range(0,6):
for j in range(0,6):
p=j*4000
Yt=p
Xt=k
interpolation_points.append([Xt, Yt])
k=k+4000
Z=tsunami.get_values(interpolation_points=interpolation_points,
location='edges')
stage = -Z # FIXME(Ole): Why the sign flip?
# Displacement in fortran code is looking downward
#print 'c est fini'
#print tmp
#print 'hello',stage
assert num.allclose(stage,tmp,atol=1.e-3)
import numpy as num
"""test_that_culvert_runs_rating
This test exercises the culvert and checks values outside rating curve
are dealt with
"""
path = get_pathname_from_package('anuga.culvert_flows')
length = 40.
width = 15.
dx = dy = 0.5 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length / dx),
int(width / dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_gate_operator') # Output name
domain.set_default_order(2)
#domain.set_beta(1.5)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
def run_simulation(parallel=False,
control_data=None,
test_points=None,
verbose=False):
success = True
##-----------------------------------------------------------------------
## Setup domain
##-----------------------------------------------------------------------
points, vertices, boundary = rectangular_cross(int(old_div(length, dx)),
int(old_div(width, dy)),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
#domain.set_name() # Output name
domain.set_store(False)
domain.set_default_order(2)
##-----------------------------------------------------------------------
## Distribute domain
##-----------------------------------------------------------------------
if parallel:
domain = distribute(domain)
#domain.dump_triangulation("frac_op_domain.png")
##-----------------------------------------------------------------------
## Setup boundary conditions
##-----------------------------------------------------------------------
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation') # Dry initial condition
Bi = anuga.Dirichlet_boundary([5.0, 0.0, 0.0])
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
##-----------------------------------------------------------------------
## Determine triangle index coinciding with test points
##-----------------------------------------------------------------------
assert (test_points is not None)
assert (len(test_points) == samples)
tri_ids = []
for point in test_points:
try:
k = domain.get_triangle_containing_point(point)
if domain.tri_full_flag[k] == 1:
tri_ids.append(k)
else:
tri_ids.append(-1)
except:
tri_ids.append(-2)
if verbose: print('P%d has points = %s' % (myid, tri_ids))
if not parallel: control_data = []
################ Define Fractional Operators ##########################
inlet0 = None
inlet1 = None
boyd_box0 = None
inlet0 = Inlet_operator(domain, line0, Q0, verbose=False, label='Inlet_0')
inlet1 = Inlet_operator(domain, line1, Q1, verbose=False, label='Inlet_1')
# Enquiry point [ 19. 2.5] is contained in two domains in 4 proc case
boyd_box0 = Boyd_box_operator(domain,
end_points=[[9.0, 2.5], [19.0, 2.5]],
losses=1.5,
width=5.0,
apron=5.0,
use_momentum_jet=True,
use_velocity_head=False,
manning=0.013,
label='Boyd_Box_0',
verbose=False)
#if inlet0 is not None and verbose: inlet0.print_statistics()
#if inlet1 is not None and verbose: inlet1.print_statistics()
if boyd_box0 is not None and verbose:
print("++++", myid)
boyd_box0.print_statistics()
# if parallel:
# factory = Parallel_operator_factory(domain, verbose = True)
#
# inlet0 = factory.inlet_operator_factory(line0, Q0)
# inlet1 = factory.inlet_operator_factory(line1, Q1)
#
# boyd_box0 = factory.boyd_box_operator_factory(end_points=[[9.0, 2.5],[19.0, 2.5]],
# losses=1.5,
# width=1.5,
# apron=5.0,
# use_momentum_jet=True,
# use_velocity_head=False,
# manning=0.013,
# verbose=False)
#
# else:
# inlet0 = Inlet_operator(domain, line0, Q0)
# inlet1 = Inlet_operator(domain, line1, Q1)
#
# # Enquiry point [ 19. 2.5] is contained in two domains in 4 proc case
# boyd_box0 = Boyd_box_operator(domain,
# end_points=[[9.0, 2.5],[19.0, 2.5]],
# losses=1.5,
# width=1.5,
# apron=5.0,
# use_momentum_jet=True,
# use_velocity_head=False,
# manning=0.013,
# verbose=False)
#######################################################################
##-----------------------------------------------------------------------
## Evolve system through time
##-----------------------------------------------------------------------
for t in domain.evolve(yieldstep=2.0, finaltime=20.0):
if myid == 0 and verbose:
domain.write_time()
#print domain.volumetric_balance_statistics()
stage = domain.get_quantity('stage')
if boyd_box0 is not None and verbose:
if myid == boyd_box0.master_proc:
print('master_proc ', myid)
boyd_box0.print_timestepping_statistics()
#for i in range(samples):
# if tri_ids[i] >= 0:
# if verbose: print 'P%d tri %d, value = %s' %(myid, i, stage.centroid_values[tri_ids[i]])
sys.stdout.flush()
pass
domain.sww_merge(delete_old=True)
success = True
##-----------------------------------------------------------------------
## Assign/Test Control data
##-----------------------------------------------------------------------
if not parallel:
stage = domain.get_quantity('stage')
for i in range(samples):
assert (tri_ids[i] >= 0)
control_data.append(stage.centroid_values[tri_ids[i]])
if inlet0 is not None:
control_data.append(inlet0.inlet.get_average_stage())
control_data.append(inlet0.inlet.get_average_xmom())
control_data.append(inlet0.inlet.get_average_ymom())
control_data.append(inlet0.inlet.get_total_water_volume())
control_data.append(inlet0.inlet.get_average_depth())
if verbose: print('P%d control_data = %s' % (myid, control_data))
else:
stage = domain.get_quantity('stage')
for i in range(samples):
if tri_ids[i] >= 0:
local_success = num.allclose(control_data[i],
stage.centroid_values[tri_ids[i]])
success = success and local_success
if verbose:
print(
'P%d tri %d, control = %s, actual = %s, Success = %s' %
(myid, i, control_data[i],
stage.centroid_values[tri_ids[i]], local_success))
if inlet0 is not None:
inlet_master_proc = inlet0.inlet.get_master_proc()
average_stage = inlet0.inlet.get_global_average_stage()
average_xmom = inlet0.inlet.get_global_average_xmom()
average_ymom = inlet0.inlet.get_global_average_ymom()
average_volume = inlet0.inlet.get_global_total_water_volume()
average_depth = inlet0.inlet.get_global_average_depth()
if myid == inlet_master_proc:
if verbose:
print('P%d average stage, control = %s, actual = %s' %
(myid, control_data[samples], average_stage))
print('P%d average xmom, control = %s, actual = %s' %
(myid, control_data[samples + 1], average_xmom))
print('P%d average ymom, control = %s, actual = %s' %
(myid, control_data[samples + 2], average_ymom))
print('P%d average volume, control = %s, actual = %s' %
(myid, control_data[samples + 3], average_volume))
print('P%d average depth, control = %s, actual = %s' %
(myid, control_data[samples + 4], average_depth))
return control_data, success
def test_Okada_func(self):
from os import sep, getenv
import sys
from anuga.abstract_2d_finite_volumes.mesh_factory \
import rectangular_cross
from anuga.abstract_2d_finite_volumes.quantity import Quantity
from anuga.utilities.system_tools import get_pathname_from_package
"""
Pick the test you want to do; T= 0 test a point source,
T= 1 test single rectangular source, T= 2 test multiple
rectangular sources
"""
# Get path where this test is run
path = get_pathname_from_package('anuga.tsunami_source')
# Choose what test to proceed
T = 1
if T == 0:
# Fortran output file
filename = path + sep + 'tests' + sep + 'data' + sep + 'fullokada_SP.txt'
# Initial condition of earthquake for multiple source
x0 = 7000.0
y0 = 10000.0
length = 0
width = 0
strike = 0.0
depth = 15.0
slip = 10.0
dip = 15.0
rake = 90.0
ns = 1
NSMAX = 1
elif T == 1:
# Fortran output file
filename = path + sep + 'tests' + sep + 'data' + sep + 'fullokada_SS.txt'
# Initial condition of earthquake for multiple source
x0 = 7000.0
y0 = 10000.0
length = 10.0
width = 6.0
strike = 0.0
depth = 15.0
slip = 10.0
dip = 15.0
rake = 90.0
ns = 1
NSMAX = 1
elif T == 2:
# Fortran output file
filename = path + sep + 'tests' + sep + 'data' + sep + 'fullokada_MS.txt'
# Initial condition of earthquake for multiple source
x0 = [7000.0, 10000.0]
y0 = [10000.0, 7000.0]
length = [10.0, 10.0]
width = [6.0, 6.0]
strike = [0.0, 0.0]
depth = [15.0, 15.0]
slip = [10.0, 10.0]
dip = [15.0, 15.0]
rake = [90.0, 90.0]
ns = 2
NSMAX = 2
# Get output file from original okada fortran script.
# Vertical displacement is listed under tmp.
polyline_file = open(filename, 'r')
lines = polyline_file.readlines()
polyline_file.close()
tmp = []
stage = []
for line in lines[0:]:
field = line.split(' ')
z = float(field[2])
tmp.append(z)
#create domain
dx = dy = 4000
l = 100000
w = 100000
#create topography
def topography(x, y):
el = -1000
return el
#print int(l/dx)
#print int(w/dy)
points, vertices, boundary = rectangular_cross(int(old_div(l, dx)),
int(old_div(w, dy)),
len1=l,
len2=w)
domain = Domain(points, vertices, boundary)
domain.set_name('test')
domain.set_quantity('elevation', topography)
#create variable with elevation data to implement in okada
zrec0 = Quantity(domain)
zrec0.set_values(0.0)
zrec = zrec0.get_vertex_values(xy=True)
# call okada
Ts= Okada_func(ns=ns, NSMAX=NSMAX,length=length, width=width, dip=dip, \
x0=x0, y0=y0, strike=strike, depth=depth, \
slip=slip, rake=rake,zrec=zrec)
#create a variable to store vertical displacement throughout the domain
tsunami = Quantity(domain)
tsunami.set_values(Ts)
# get vertical displacement at each point of the domain respecting
# original script's order
interpolation_points = []
k = 0.0
for i in range(0, 6):
for j in range(0, 6):
p = j * 4000
Yt = p
Xt = k
interpolation_points.append([Xt, Yt])
k = k + 4000
Z = tsunami.get_values(interpolation_points=interpolation_points,
location='edges')
stage = -Z # FIXME(Ole): Why the sign flip?
# Displacement in fortran code is looking downward
#print tmp
#print 'hello',stage
assert num.allclose(stage, tmp, atol=1.e-3)
def OBSOLETE_XXXtest_that_culvert_rating_limits_flow_in_shallow_inlet_condition(self):
"""test_that_culvert_rating_limits_flow_in_shallow_inlet_condition
Test that culvert on a sloping dry bed limits flows when very little water
is present at inlet
This one is using the rating curve variant
"""
path = get_pathname_from_package('anuga.culvert_flows')
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length/dx),
int(width/dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_culvert_shallow') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
"""
# General Slope of Topography
z=-x/1000
N = len(x)
for i in range(N):
# Sloping Embankment Across Channel
if 5.0 < x[i] < 10.1:
# Cut Out Segment for Culvert face
if 1.0+(x[i]-5.0)/5.0 < y[i] < 4.0 - (x[i]-5.0)/5.0:
z[i]=z[i]
else:
z[i] += 0.5*(x[i] -5.0) # Sloping Segment U/S Face
if 10.0 < x[i] < 12.1:
z[i] += 2.5 # Flat Crest of Embankment
if 12.0 < x[i] < 14.5:
# Cut Out Segment for Culvert face
if 2.0-(x[i]-12.0)/2.5 < y[i] < 3.0 + (x[i]-12.0)/2.5:
z[i]=z[i]
else:
z[i] += 2.5-1.0*(x[i] -12.0) # Sloping D/S Face
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation + 0.1') # Shallow initial condition
# Boyd culvert
culvert = Culvert_flow(domain,
label='Culvert No. 1',
description='This culvert is a test unit 1.2m Wide by 0.75m High',
end_point0=[9.0, 2.5],
end_point1=[13.0, 2.5],
width=1.20, height=0.75,
culvert_routine=boyd_generalised_culvert_model,
number_of_barrels=1,
update_interval=2,
verbose=False)
# Rating curve
#filename = os.path.join(path, 'example_rating_curve.csv')
#culvert = Culvert_flow(domain,
# culvert_description_filename=filename,
# end_point0=[9.0, 2.5],
# end_point1=[13.0, 2.5],
# trigger_depth=0.01,
# verbose=False)
domain.forcing_terms.append(culvert)
#-----------------------------------------------------------------------
# Setup boundary conditions
#-----------------------------------------------------------------------
# Inflow based on Flow Depth and Approaching Momentum
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
#-----------------------------------------------------------------------
# Evolve system through time
#-----------------------------------------------------------------------
print 'depth', 0.1
ref_volume = domain.get_quantity('stage').get_integral()
for t in domain.evolve(yieldstep = 0.1, finaltime = 25):
new_volume = domain.get_quantity('stage').get_integral()
msg = ('Total volume has changed: Is %.8f m^3 should have been %.8f m^3'
% (new_volume, ref_volume))
assert num.allclose(new_volume, ref_volume, rtol=1.0e-10), msg
return
# Now try this again for a depth of 10 cm and for a range of other depths
for depth in [0.1, 0.2, 0.5, 1.0]:
print 'depth', depth
domain.set_time(0.0)
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation + %f' % depth)
ref_volume = domain.get_quantity('stage').get_integral()
for t in domain.evolve(yieldstep = 0.1, finaltime = 25):
new_volume = domain.get_quantity('stage').get_integral()
msg = 'Total volume has changed: Is %.8f m^3 should have been %.8f m^3'\
% (new_volume, ref_volume)
assert num.allclose(new_volume, ref_volume, rtol=1.0e-10), msg
def test_get_maximum_inundation_from_sww(self):
"""test_get_maximum_inundation_from_sww(self)
Test of get_maximum_inundation_elevation()
and get_maximum_inundation_location().
This is based on test_get_maximum_inundation_3(self) but works with the
stored results instead of with the internal data structure.
This test uses the underlying get_maximum_inundation_data for tests
"""
verbose = False
from anuga.config import minimum_storable_height
initial_runup_height = -0.4
final_runup_height = -0.3
filename = 'runup_test_2'
#--------------------------------------------------------------
# Setup computational domain
#--------------------------------------------------------------
N = 10
points, vertices, boundary = rectangular_cross(N, N)
domain = Domain(points, vertices, boundary)
domain.set_name(filename)
domain.set_maximum_allowed_speed(1.0)
#domain.set_minimum_storable_height(1.0e-5)
domain.set_store_vertices_uniquely()
# FIXME: This works better with old limiters so far
domain.tight_slope_limiters = 0
#--------------------------------------------------------------
# Setup initial conditions
#--------------------------------------------------------------
def topography(x, y):
return -x/2 # linear bed slope
# Use function for elevation
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.) # Zero friction
# Constant negative initial stage
domain.set_quantity('stage', initial_runup_height)
#--------------------------------------------------------------
# Setup boundary conditions
#--------------------------------------------------------------
Br = Reflective_boundary(domain) # Reflective wall
Bd = Dirichlet_boundary([final_runup_height, 0, 0]) # Constant inflow
# All reflective to begin with (still water)
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
#--------------------------------------------------------------
# Test initial inundation height
#--------------------------------------------------------------
indices = domain.get_wet_elements()
z = domain.get_quantity('elevation').\
get_values(location='centroids', indices=indices)
assert num.alltrue(z < initial_runup_height)
q_ref = domain.get_maximum_inundation_elevation(minimum_height=minimum_storable_height)
# First order accuracy
assert num.allclose(q_ref, initial_runup_height, rtol=1.0/N)
#--------------------------------------------------------------
# Let triangles adjust
#--------------------------------------------------------------
q_max = None
for t in domain.evolve(yieldstep = 0.1, finaltime = 1.0):
q = domain.get_maximum_inundation_elevation(minimum_height=minimum_storable_height)
if verbose:
domain.write_time()
print q
if q > q_max:
q_max = q
#--------------------------------------------------------------
# Test inundation height again
#--------------------------------------------------------------
#q_ref = domain.get_maximum_inundation_elevation()
q = get_maximum_inundation_elevation(filename+'.sww')
msg = 'We got %f, should have been %f' % (q, q_max)
assert num.allclose(q, q_max, rtol=2.0/N), msg
msg = 'We got %f, should have been %f' % (q, initial_runup_height)
assert num.allclose(q, initial_runup_height, rtol = 1.0/N), msg
# Test error condition if time interval is out
try:
q = get_maximum_inundation_elevation(filename+'.sww',
time_interval=[2.0, 3.0])
except ValueError:
pass
else:
msg = 'should have caught wrong time interval'
raise Exception, msg
# Check correct time interval
q, loc = get_maximum_inundation_data(filename+'.sww',
time_interval=[0.0, 3.0])
msg = 'We got %f, should have been %f' % (q, initial_runup_height)
assert num.allclose(q, initial_runup_height, rtol = 1.0/N), msg
assert num.allclose(-loc[0]/2, q) # From topography formula
#--------------------------------------------------------------
# Update boundary to allow inflow
#--------------------------------------------------------------
domain.set_boundary({'right': Bd})
#--------------------------------------------------------------
# Evolve system through time
#--------------------------------------------------------------
for t in domain.evolve(yieldstep = 0.1, finaltime = 3.0,
skip_initial_step = True):
q = domain.get_maximum_inundation_elevation(minimum_height=minimum_storable_height)
if verbose:
domain.write_time()
print q
if q > q_max:
q_max = q
#--------------------------------------------------------------
# Test inundation height again
#--------------------------------------------------------------
indices = domain.get_wet_elements()
z = domain.get_quantity('elevation').\
get_values(location='centroids', indices=indices)
assert num.alltrue(z < final_runup_height+1.0/N)
q = domain.get_maximum_inundation_elevation()
# First order accuracy
assert num.allclose(q, final_runup_height, rtol=1.0/N)
q, loc = get_maximum_inundation_data(filename+'.sww',
time_interval=[3.0, 3.0])
msg = 'We got %f, should have been %f' % (q, final_runup_height)
assert num.allclose(q, final_runup_height, rtol=1.0/N), msg
assert num.allclose(-loc[0]/2, q) # From topography formula
q = get_maximum_inundation_elevation(filename+'.sww',verbose = verbose)
loc = get_maximum_inundation_location(filename+'.sww')
msg = 'We got %f, should have been %f' % (q, q_max)
assert num.allclose(q, q_max, rtol=1.0/N), msg
assert num.allclose(-loc[0]/2, q) # From topography formula
q = get_maximum_inundation_elevation(filename+'.sww',
time_interval=[0, 3])
msg = 'We got %f, should have been %f' % (q, q_max)
assert num.allclose(q, q_max, rtol=1.0/N), msg
# Check polygon mode
# Runup region
polygon = [[0.3, 0.0], [0.9, 0.0], [0.9, 1.0], [0.3, 1.0]]
q = get_maximum_inundation_elevation(filename+'.sww',
polygon = polygon,
time_interval=[0, 3])
msg = 'We got %f, should have been %f' % (q, q_max)
assert num.allclose(q, q_max, rtol=1.0/N), msg
# Offshore region
polygon = [[0.9, 0.0], [1.0, 0.0], [1.0, 1.0], [0.9, 1.0]]
q, loc = get_maximum_inundation_data(filename+'.sww',
polygon = polygon,
time_interval=[0, 3])
msg = 'We got %f, should have been %f' % (q, -0.475)
assert num.allclose(q, -0.475, rtol=1.0/N), msg
assert is_inside_polygon(loc, polygon)
assert num.allclose(-loc[0]/2, q) # From topography formula
# Dry region
polygon = [[0.0, 0.0], [0.4, 0.0], [0.4, 1.0], [0.0, 1.0]]
q, loc = get_maximum_inundation_data(filename+'.sww',
polygon = polygon,
time_interval=[0, 3])
msg = 'We got %s, should have been None' % (q)
assert q is None, msg
msg = 'We got %s, should have been None' % (loc)
assert loc is None, msg
# Check what happens if no time point is within interval
try:
q = get_maximum_inundation_elevation(filename+'.sww',
time_interval=[2.75, 2.75])
except AssertionError:
pass
else:
msg = 'Time interval should have raised an exception'
raise Exception, msg
# Cleanup
try:
pass
#os.remove(domain.get_name() + '.sww')
except:
pass
def test_predicted_boyd_flow(self):
"""test_predicted_boyd_flow
Test that flows predicted by the boyd method are consistent with what what
is calculated in engineering codes.
The data was supplied by Petar Milevski
"""
# FIXME(Ole) this is nowhere near finished
path = get_pathname_from_package('anuga.culvert_flows')
length = 12.
width = 5.
dx = dy = 0.5 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length/dx),
int(width/dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('test_culvert') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
# General Slope of Topography
z=-x/10
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage', expression='elevation')
Q0 = domain.get_quantity('stage')
Q1 = Quantity(domain)
# Add depths to stage
head_water_depth = 0.169
tail_water_depth = 0.089
inlet_poly = [[0,0], [6,0], [6,5], [0,5]]
outlet_poly = [[6,0], [12,0], [12,5], [6,5]]
Q1.set_values(Polygon_function([(inlet_poly, head_water_depth),
(outlet_poly, tail_water_depth)]))
domain.set_quantity('stage', Q0 + Q1)
culvert = Culvert_flow(domain,
label='Test culvert',
description='4 m test culvert',
end_point0=[4.0, 2.5],
end_point1=[8.0, 2.5],
width=1.20,
height=0.75,
culvert_routine=boyd_generalised_culvert_model,
number_of_barrels=1,
verbose=False)
domain.forcing_terms.append(culvert)
# Call
culvert(domain)
def test_that_culvert_runs_rating(self):
"""test_that_culvert_runs_rating
This test exercises the culvert and checks values outside rating curve
are dealt with
"""
path = get_pathname_from_package('anuga.culvert_flows')
path = os.path.join(path, 'tests', 'data')
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length / dx),
int(width / dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_culvert') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
"""
# General Slope of Topography
z = -x / 1000
N = len(x)
for i in range(N):
# Sloping Embankment Across Channel
if 5.0 < x[i] < 10.1:
# Cut Out Segment for Culvert face
if 1.0 + (x[i] - 5.0) / 5.0 < y[i] < 4.0 - (x[i] -
5.0) / 5.0:
z[i] = z[i]
else:
z[i] += 0.5 * (x[i] - 5.0) # Sloping Segment U/S Face
if 10.0 < x[i] < 12.1:
z[i] += 2.5 # Flat Crest of Embankment
if 12.0 < x[i] < 14.5:
# Cut Out Segment for Culvert face
if 2.0 - (x[i] - 12.0) / 2.5 < y[i] < 3.0 + (x[i] -
12.0) / 2.5:
z[i] = z[i]
else:
z[i] += 2.5 - 1.0 * (x[i] - 12.0) # Sloping D/S Face
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage',
expression='elevation') # Dry initial condition
filename = os.path.join(path, 'example_rating_curve.csv')
culvert = Culvert_flow(domain,
culvert_description_filename=filename,
end_point0=[9.0, 2.5],
end_point1=[13.0, 2.5],
width=1.00,
use_velocity_head=True,
verbose=False)
domain.forcing_terms.append(culvert)
#-----------------------------------------------------------------------
# Setup boundary conditions
#-----------------------------------------------------------------------
# Inflow based on Flow Depth and Approaching Momentum
Bi = anuga.Dirichlet_boundary([0.0, 0.0, 0.0])
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
Bo = anuga.Dirichlet_boundary([-5, 0, 0]) # Outflow
# Upstream and downstream conditions that will exceed the rating curve
# I.e produce delta_h outside the range [0, 10] specified in the the
# file example_rating_curve.csv
Btus = anuga.Time_boundary(
domain, lambda t: [100 * num.sin(2 * pi * (t - 4) / 10), 0.0, 0.0])
Btds = anuga.Time_boundary(
domain,
lambda t: [-5 * (num.cos(2 * pi * (t - 4) / 20)), 0.0, 0.0])
domain.set_boundary({
'left': Btus,
'right': Btds,
'top': Br,
'bottom': Br
})
#-----------------------------------------------------------------------
# Evolve system through time
#-----------------------------------------------------------------------
min_delta_w = sys.maxint
max_delta_w = -min_delta_w
for t in domain.evolve(yieldstep=1, finaltime=25):
delta_w = culvert.inlet.stage - culvert.outlet.stage
if delta_w > max_delta_w: max_delta_w = delta_w
if delta_w < min_delta_w: min_delta_w = delta_w
pass
# Check that extreme values in rating curve have been exceeded
# so that we know that condition has been exercised
assert min_delta_w < 0
assert max_delta_w > 10
os.remove('Test_culvert.sww')
#------------------------------------------------------------------------------
# Setup computational domain
#------------------------------------------------------------------------------
print 'Setting up domain'
length = 120. #x-Dir
width = 200. #y-dir
dx = dy = 2.0 # Resolution: Length of subdivisions on both axes
#dx = dy = .5 # Resolution: Length of subdivisions on both axes
#dx = dy = .5 # Resolution: Length of subdivisions on both axes
#dx = dy = .1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length/dx), int(width/dy),
len1=length, len2=width)
domain = Domain(points, vertices, boundary)
domain.set_name('Test_Outlet_Ctrl') # Output name
domain.set_default_order(2)
domain.H0 = 0.01
domain.tight_slope_limiters = 1
print 'Size', len(domain)
#------------------------------------------------------------------------------
# Setup initial conditions
#------------------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
def OBSOLETE_XXXtest_that_culvert_rating_limits_flow_in_shallow_inlet_condition(
self):
"""test_that_culvert_rating_limits_flow_in_shallow_inlet_condition
Test that culvert on a sloping dry bed limits flows when very little water
is present at inlet
This one is using the rating curve variant
"""
path = get_pathname_from_package('anuga.culvert_flows')
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(length / dx),
int(width / dy),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_culvert_shallow') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
"""
# General Slope of Topography
z = -x / 1000
N = len(x)
for i in range(N):
# Sloping Embankment Across Channel
if 5.0 < x[i] < 10.1:
# Cut Out Segment for Culvert face
if 1.0 + (x[i] - 5.0) / 5.0 < y[i] < 4.0 - (x[i] -
5.0) / 5.0:
z[i] = z[i]
else:
z[i] += 0.5 * (x[i] - 5.0) # Sloping Segment U/S Face
if 10.0 < x[i] < 12.1:
z[i] += 2.5 # Flat Crest of Embankment
if 12.0 < x[i] < 14.5:
# Cut Out Segment for Culvert face
if 2.0 - (x[i] - 12.0) / 2.5 < y[i] < 3.0 + (x[i] -
12.0) / 2.5:
z[i] = z[i]
else:
z[i] += 2.5 - 1.0 * (x[i] - 12.0) # Sloping D/S Face
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity(
'stage', expression='elevation + 0.1') # Shallow initial condition
# Boyd culvert
culvert = Culvert_flow(
domain,
label='Culvert No. 1',
description='This culvert is a test unit 1.2m Wide by 0.75m High',
end_point0=[9.0, 2.5],
end_point1=[13.0, 2.5],
width=1.20,
height=0.75,
culvert_routine=boyd_generalised_culvert_model,
number_of_barrels=1,
update_interval=2,
verbose=False)
# Rating curve
#filename = os.path.join(path, 'example_rating_curve.csv')
#culvert = Culvert_flow(domain,
# culvert_description_filename=filename,
# end_point0=[9.0, 2.5],
# end_point1=[13.0, 2.5],
# trigger_depth=0.01,
# verbose=False)
domain.forcing_terms.append(culvert)
#-----------------------------------------------------------------------
# Setup boundary conditions
#-----------------------------------------------------------------------
# Inflow based on Flow Depth and Approaching Momentum
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
#-----------------------------------------------------------------------
# Evolve system through time
#-----------------------------------------------------------------------
print 'depth', 0.1
ref_volume = domain.get_quantity('stage').get_integral()
for t in domain.evolve(yieldstep=0.1, finaltime=25):
new_volume = domain.get_quantity('stage').get_integral()
msg = (
'Total volume has changed: Is %.8f m^3 should have been %.8f m^3'
% (new_volume, ref_volume))
assert num.allclose(new_volume, ref_volume, rtol=1.0e-10), msg
return
# Now try this again for a depth of 10 cm and for a range of other depths
for depth in [0.1, 0.2, 0.5, 1.0]:
print 'depth', depth
domain.set_time(0.0)
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage', expression='elevation + %f' % depth)
ref_volume = domain.get_quantity('stage').get_integral()
for t in domain.evolve(yieldstep=0.1, finaltime=25):
new_volume = domain.get_quantity('stage').get_integral()
msg = 'Total volume has changed: Is %.8f m^3 should have been %.8f m^3'\
% (new_volume, ref_volume)
assert num.allclose(new_volume, ref_volume, rtol=1.0e-10), msg
def _create_domain(self,
d_length,
d_width,
dx,
dy,
elevation_0,
elevation_1,
stage_0,
stage_1,
xvelocity_0=0.0,
xvelocity_1=0.0,
yvelocity_0=0.0,
yvelocity_1=0.0):
points, vertices, boundary = rectangular_cross(int(d_length / dx),
int(d_width / dy),
len1=d_length,
len2=d_width)
domain = Domain(points, vertices, boundary)
domain.set_name('Test_Outlet_Inlet') # Output name
domain.set_store()
domain.set_default_order(2)
domain.H0 = 0.01
domain.tight_slope_limiters = 1
#print 'Size', len(domain)
#------------------------------------------------------------------------------
# Setup initial conditions
#------------------------------------------------------------------------------
def elevation(x, y):
"""Set up a elevation
"""
z = numpy.zeros(x.shape, dtype='d')
z[:] = elevation_0
numpy.putmask(z, x > d_length / 2, elevation_1)
return z
def stage(x, y):
"""Set up stage
"""
z = numpy.zeros(x.shape, dtype='d')
z[:] = stage_0
numpy.putmask(z, x > d_length / 2, stage_1)
return z
def xmom(x, y):
"""Set up xmomentum
"""
z = numpy.zeros(x.shape, dtype='d')
z[:] = xvelocity_0 * (stage_0 - elevation_0)
numpy.putmask(z, x > d_length / 2,
xvelocity_1 * (stage_1 - elevation_1))
return z
def ymom(x, y):
"""Set up ymomentum
"""
z = numpy.zeros(x.shape, dtype='d')
z[:] = yvelocity_0 * (stage_0 - elevation_0)
numpy.putmask(z, x > d_length / 2,
yvelocity_1 * (stage_1 - elevation_1))
return z
#print 'Setting Quantities....'
domain.set_quantity('elevation',
elevation) # Use function for elevation
domain.set_quantity('stage', stage) # Use function for elevation
domain.set_quantity('xmomentum', xmom)
domain.set_quantity('ymomentum', ymom)
return domain
def run_culvert_flow_problem(depth):
"""Run flow with culvert given depth
"""
length = 40.
width = 5.
dx = dy = 1 # Resolution: Length of subdivisions on both axes
points, vertices, boundary = rectangular_cross(int(old_div(length, dx)),
int(old_div(width, dy)),
len1=length,
len2=width)
domain = anuga.Domain(points, vertices, boundary)
domain.set_name('Test_culvert_shallow') # Output name
domain.set_default_order(2)
#----------------------------------------------------------------------
# Setup initial conditions
#----------------------------------------------------------------------
def topography(x, y):
"""Set up a weir
A culvert will connect either side
"""
# General Slope of Topography
z = old_div(-x, 1000)
N = len(x)
for i in range(N):
# Sloping Embankment Across Channel
if 5.0 < x[i] < 10.1:
# Cut Out Segment for Culvert face
if 1.0 + (x[i] - 5.0) / 5.0 < y[i] < 4.0 - (x[i] - 5.0) / 5.0:
z[i] = z[i]
else:
z[i] += 0.5 * (x[i] - 5.0) # Sloping Segment U/S Face
if 10.0 < x[i] < 12.1:
z[i] += 2.5 # Flat Crest of Embankment
if 12.0 < x[i] < 14.5:
# Cut Out Segment for Culvert face
if 2.0 - (x[i] - 12.0) / 2.5 < y[i] < 3.0 + (x[i] -
12.0) / 2.5:
z[i] = z[i]
else:
z[i] += 2.5 - 1.0 * (x[i] - 12.0) # Sloping D/S Face
return z
domain.set_quantity('elevation', topography)
domain.set_quantity('friction', 0.01) # Constant friction
domain.set_quantity('stage', expression='elevation + %f' %
depth) # Shallow initial condition
# Boyd culvert
culvert = Culvert_flow(
domain,
label='Culvert No. 1',
description='This culvert is a test unit 1.2m Wide by 0.75m High',
end_point0=[9.0, 2.5],
end_point1=[13.0, 2.5],
width=1.20,
height=0.75,
culvert_routine=boyd_generalised_culvert_model,
number_of_barrels=1,
update_interval=2,
verbose=False)
domain.forcing_terms.append(culvert)
#-----------------------------------------------------------------------
# Setup boundary conditions
#-----------------------------------------------------------------------
# Inflow based on Flow Depth and Approaching Momentum
Br = anuga.Reflective_boundary(domain) # Solid reflective wall
domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br})
#-----------------------------------------------------------------------
# Evolve system through time
#-----------------------------------------------------------------------
#print 'depth', depth
ref_volume = domain.get_quantity('stage').get_integral()
for t in domain.evolve(yieldstep=0.1, finaltime=10):
new_volume = domain.get_quantity('stage').get_integral()
msg = (
'Total volume has changed: Is %.8f m^3 should have been %.8f m^3' %
(new_volume, ref_volume))
assert num.allclose(new_volume, ref_volume), msg
os.remove('Test_culvert_shallow.sww')
