def postprocess1phase(path, solver=None):
"""
Postprocesses output directory of a solver.
Use it for 1 phase simulations: moving cylinder etc.
Looks for all the timesteps, computes and plots kinetic energy, maximum velocity,
timesteps.
"""
path = os.path.abspath(path)
if os.path.isdir(path):
out_dir = os.path.abspath(path)
else:
out_dir = os.path.split(path)[0]
solver = solver or determineSolver(path)
t, Ek, Vmax, Vx_max, P = [], [], [], [], []
rho = 1000
if solver == "TruchasEnSight":
file = globFiles(path, ext=".CASE")[0]
basename = findBasename(file, solver)
dt = findDt(out_dir, basename, solver)
vtkFile = vtkextract.vtkFile()
vtkFile.solver = solver
vtkFile.sim = "3D"
ts = 0
for l in open(file).readlines():
if "number of steps" in l:
ts = int(l.split()[-1])
print "postprocess1phase: ", ts, " ensight CASE files in", out_dir, ": ",
for i in range(ts):
print i,
sys.stdout.flush()
vtkFile.readFile(file, ts=i)
# centers = vtkFile.getCenters()
vel = vtkFile.getVelocity()
u = np.sqrt(vel[:, 0] ** 2 + vel[:, 1] ** 2 + vel[:, 2] ** 2)
vol = vtkFile.getVolumes()
Ek.append(np.sum(u ** 2 * rho * vol / 2))
Vmax.append(np.max(u))
Vx_max.append(np.max(vel[:, 0]))
p = vtkFile.getPressure()
P.append(p.max())
if vtkFile.time >= 0:
t.append(vtkFile.time)
else:
t.append(i * dt)
print
else:
files = globFiles(path, ext=".vtk", verbose=False)
basename = findBasename(files[0], solver)
dt = findDt(out_dir, basename, solver)
vtkFile = vtkextract.vtkFile()
vtkFile.solver = solver
print "postprocess1phase: ", len(files), "files in", out_dir, ": ", basename + ".#.vtk",
for i, file in enumerate(files):
print i,
sys.stdout.flush()
vtkFile.readFile(file, verbose=False)
# centers = vtkFile.getCenters()
vel = vtkFile.getVelocity()
u = np.sqrt(vel[:, 0] ** 2 + vel[:, 1] ** 2 + vel[:, 2] ** 2)
vol = vtkFile.getVolumes()
Ek.append(np.sum(u ** 2 * rho * vol / 2))
Vmax.append(np.max(u))
Vx_max.append(np.max(vel[:, 0]))
# p = vtkFile.getPressure()
# P.append(p.max())
if vtkFile.time >= 0:
t.append(vtkFile.time)
else:
t.append(i * dt)
print
t = np.array(t)
Ek = np.array(Ek)
Vmax = np.array(Vmax)
# P = np.array(P)
Vx_max = np.array(Vx_max)
saveData(out_dir, basename, var=[t, Vmax, Ek, Vx_max], labels=["t", "Vmax", "Ek", "Vx_max"])
def postprocess(path, solver=None):
"""
Postprocesses output directory of a simulation.
Use it for 2 phase simulations: propagation of a solitary wave, run up of a solitary wave,
still water test.
Extracts data from all VTK files, computes and plots kinetic energy, maximum velocity etc.
"""
path = os.path.abspath(path)
solver = solver or determineSolver(path)
test = determineTestCase(path)
amp = determineAmplitude(path)
files = globFiles(path, ext='.vtk', verbose=False, exit=0)
if not files:
return 1
basename = findBasename(files[0], solver)
out_dir = os.path.abspath(path) if os.path.isdir(path) else os.path.split(
path)[0]
dt = findDt(out_dir, basename, solver)
vtkFile = vtkextract.vtkFile()
vtkFile.solver = solver
Ek, Ep, Vmax, max_x, max_z, max_z_largest, mass, mass_wave = [], [], [], [], [], [], [], []
variable_names = [
't', 'center_full_width', 'full_width', 'center_max_height'
]
data = {name: [] for name in variable_names}
print 'postprocess: ', len(
files), 'files in', out_dir, ': ', basename + '.#.vtk',
for i, file in enumerate(files):
print i,
sys.stdout.flush()
vtkFile.readFile(file, verbose=False)
vel = vtkFile.getVelocity()
u = np.sqrt(vel[:, 0]**2 + vel[:, 1]**2 + vel[:, 2]**2)
vol = vtkFile.getVolumes()
#ipdb.set_trace()
water = vtkFile.getWaterFraction()
rho = water * 1000 + (1 - water) * 1
Ekk = u**2 * rho * vol / 2
Ek.append(np.sum(Ekk[water > 0.005]))
Vmax.append(np.max(u * water))
mass.append(np.sum(vol * rho))
mass_wave.append(
(np.sum(vol * water) - np.max(vtkFile.bounds[:, 1])) * 1000)
if vtkFile.time >= 0:
data['t'].append(vtkFile.time)
else:
data['t'].append(i * dt)
contour = vtkFile.getContour()
#sorting the x values (will spoil the results for complicated shapes, but works fine for propagation and run up:
arg = np.argsort(contour[:, 0], axis=0)
contour = contour[arg]
contour = contour[contour[:, 2] >= -0.05]
maxWaterLevel = np.max(contour[:, 2])
centerX = np.mean(contour[contour[:, 2] == maxWaterLevel, 0])
max_x.append(centerX)
max_z.append(maxWaterLevel)
data['center_max_height'].append(centerX)
contour = vtkFile.getContour(largestRegion=True)
arg = np.argsort(contour[:, 0], axis=0)
contour = contour[arg]
contour = contour[contour[:, 2] >= -0.05]
max_z_largest.append(np.max(contour[:, 2]))
#calculation of potential energy - integration of the interface
dx = contour[1:, 0] - contour[:-1, 0]
height = (contour[:-1, 2] + contour[1:, 2]) / 2
Ep1 = height * height * dx * 1000 * g / 2
Ep1 = np.sum(Ep1)
Ep.append(Ep1)
if 'propagation' in path.lower():
#calculation of the full width at half maximum
#making the contour 1D:
indices = np.unique(contour[:, 0], return_index=True)[1]
contour = contour[indices]
contour = contour[:, [0, 2]]
f = scipy.interpolate.interp1d(contour[:, 0],
contour[:, 1] - float(amp) / 2,
bounds_error=False,
fill_value=0)
a = scipy.optimize.brentq(f, np.min(contour[:, 0]), centerX)
b = scipy.optimize.brentq(f, centerX, np.max(contour[:, 0]))
data['full_width'].append(b - a)
data['center_full_width'].append((a + b) / 2)
print
#for Gerris, the centers and bounds are moved by 1 in z direction by vtkextract.py
saveData(out_dir,
basename,
var=[
data['t'], Ek, Ep, mass, mass_wave, Vmax, max_x,
max_z_largest, max_z
],
labels=[
't', 'Ek', 'Ep', 'mass', 'massWave', 'maxVel', 'Xmax',
'Zmax_largest', 'Zmax'
],
data_sep_files=data)
print "Plotting..."
title = '{test} - {{}} ({solver})'.format(test=test, solver=solver)
maker = plotMaker(data['t'],
basename + ".{name}",
ext=['png', 'pdf'],
xlabel='Time $[s]$',
a=determineAmplitude(path),
out_dir=out_dir,
slope=determineSlope(path),
title=title)
maker.plotEvolution(
Ek,
'EK',
name_long='kinetic energy',
ylabel='Kinetic energy $[J]$',
)
maker.plotEvolution(
Ep,
'EP',
name_long='potential energy',
ylabel='Potential energy $[J]$',
)
maker.plotEvolution(
Vmax,
'MaxVel',
name_long='maximum velocity',
ylabel='Velocity $[\\frac{m}{s}]$',
)
runup = True if 'run up' in test.lower() else False
maker.plotEvolution(max_z,
'Height-multi',
name_long='maximum height',
ylabel='Height $[m]$',
reference=runup)
maker.plotEvolution(max_z_largest,
'Height',
name_long='maximum height of largest region',
ylabel='Height $[m]$',
reference=runup)
def postprocess(path, solver=None):
"""
Postprocesses output directory of a simulation.
Use it for 2 phase simulations: propagation of a solitary wave, run up of a solitary wave,
still water test.
Extracts data from all VTK files, computes and plots kinetic energy, maximum velocity etc.
"""
path = os.path.abspath(path)
solver = solver or determineSolver(path)
test = determineTestCase(path)
amp = determineAmplitude(path)
files = globFiles(path, ext=".vtk", verbose=False, exit=0)
if not files:
return 1
basename = findBasename(files[0], solver)
out_dir = os.path.abspath(path) if os.path.isdir(path) else os.path.split(path)[0]
dt = findDt(out_dir, basename, solver)
vtkFile = vtkextract.vtkFile()
vtkFile.solver = solver
Ek, Ep, Vmax, max_x, max_z, max_z_largest, mass, mass_wave = [], [], [], [], [], [], [], []
variable_names = ["t", "center_full_width", "full_width", "center_max_height"]
data = {name: [] for name in variable_names}
print "postprocess: ", len(files), "files in", out_dir, ": ", basename + ".#.vtk",
for i, file in enumerate(files):
print i,
sys.stdout.flush()
vtkFile.readFile(file, verbose=False)
vel = vtkFile.getVelocity()
u = np.sqrt(vel[:, 0] ** 2 + vel[:, 1] ** 2 + vel[:, 2] ** 2)
vol = vtkFile.getVolumes()
# ipdb.set_trace()
water = vtkFile.getWaterFraction()
rho = water * 1000 + (1 - water) * 1
Ekk = u ** 2 * rho * vol / 2
Ek.append(np.sum(Ekk[water > 0.005]))
Vmax.append(np.max(u * water))
mass.append(np.sum(vol * rho))
mass_wave.append((np.sum(vol * water) - np.max(vtkFile.bounds[:, 1])) * 1000)
if vtkFile.time >= 0:
data["t"].append(vtkFile.time)
else:
data["t"].append(i * dt)
contour = vtkFile.getContour()
# sorting the x values (will spoil the results for complicated shapes, but works fine for propagation and run up:
arg = np.argsort(contour[:, 0], axis=0)
contour = contour[arg]
contour = contour[contour[:, 2] >= -0.05]
maxWaterLevel = np.max(contour[:, 2])
centerX = np.mean(contour[contour[:, 2] == maxWaterLevel, 0])
max_x.append(centerX)
max_z.append(maxWaterLevel)
data["center_max_height"].append(centerX)
contour = vtkFile.getContour(largestRegion=True)
arg = np.argsort(contour[:, 0], axis=0)
contour = contour[arg]
contour = contour[contour[:, 2] >= -0.05]
max_z_largest.append(np.max(contour[:, 2]))
# calculation of potential energy - integration of the interface
dx = contour[1:, 0] - contour[:-1, 0]
height = (contour[:-1, 2] + contour[1:, 2]) / 2
Ep1 = height * height * dx * 1000 * g / 2
Ep1 = np.sum(Ep1)
Ep.append(Ep1)
if "propagation" in path.lower():
# calculation of the full width at half maximum
# making the contour 1D:
indices = np.unique(contour[:, 0], return_index=True)[1]
contour = contour[indices]
contour = contour[:, [0, 2]]
f = scipy.interpolate.interp1d(
contour[:, 0], contour[:, 1] - float(amp) / 2, bounds_error=False, fill_value=0
)
a = scipy.optimize.brentq(f, np.min(contour[:, 0]), centerX)
b = scipy.optimize.brentq(f, centerX, np.max(contour[:, 0]))
data["full_width"].append(b - a)
data["center_full_width"].append((a + b) / 2)
print
# for Gerris, the centers and bounds are moved by 1 in z direction by vtkextract.py
saveData(
out_dir,
basename,
var=[data["t"], Ek, Ep, mass, mass_wave, Vmax, max_x, max_z_largest, max_z],
labels=["t", "Ek", "Ep", "mass", "massWave", "maxVel", "Xmax", "Zmax_largest", "Zmax"],
data_sep_files=data,
)
print "Plotting..."
title = "{test} - {{}} ({solver})".format(test=test, solver=solver)
maker = plotMaker(
data["t"],
basename + ".{name}",
ext=["png", "pdf"],
xlabel="Time $[s]$",
a=determineAmplitude(path),
out_dir=out_dir,
slope=determineSlope(path),
title=title,
)
maker.plotEvolution(Ek, "EK", name_long="kinetic energy", ylabel="Kinetic energy $[J]$")
maker.plotEvolution(Ep, "EP", name_long="potential energy", ylabel="Potential energy $[J]$")
maker.plotEvolution(Vmax, "MaxVel", name_long="maximum velocity", ylabel="Velocity $[\\frac{m}{s}]$")
runup = True if "run up" in test.lower() else False
maker.plotEvolution(max_z, "Height-multi", name_long="maximum height", ylabel="Height $[m]$", reference=runup)
maker.plotEvolution(
max_z_largest, "Height", name_long="maximum height of largest region", ylabel="Height $[m]$", reference=runup
)
def postprocess1phase(path, solver=None):
"""
Postprocesses output directory of a solver.
Use it for 1 phase simulations: moving cylinder etc.
Looks for all the timesteps, computes and plots kinetic energy, maximum velocity,
timesteps.
"""
path = os.path.abspath(path)
if os.path.isdir(path):
out_dir = os.path.abspath(path)
else:
out_dir = os.path.split(path)[0]
solver = solver or determineSolver(path)
t, Ek, Vmax, Vx_max, P = [], [], [], [], []
rho = 1000
if solver == 'TruchasEnSight':
file = globFiles(path, ext='.CASE')[0]
basename = findBasename(file, solver)
dt = findDt(out_dir, basename, solver)
vtkFile = vtkextract.vtkFile()
vtkFile.solver = solver
vtkFile.sim = '3D'
ts = 0
for l in open(file).readlines():
if 'number of steps' in l:
ts = int(l.split()[-1])
print 'postprocess1phase: ', ts, ' ensight CASE files in', out_dir, ': ',
for i in range(ts):
print i,
sys.stdout.flush()
vtkFile.readFile(file, ts=i)
#centers = vtkFile.getCenters()
vel = vtkFile.getVelocity()
u = np.sqrt(vel[:, 0]**2 + vel[:, 1]**2 + vel[:, 2]**2)
vol = vtkFile.getVolumes()
Ek.append(np.sum(u**2 * rho * vol / 2))
Vmax.append(np.max(u))
Vx_max.append(np.max(vel[:, 0]))
p = vtkFile.getPressure()
P.append(p.max())
if vtkFile.time >= 0:
t.append(vtkFile.time)
else:
t.append(i * dt)
print
else:
files = globFiles(path, ext='.vtk', verbose=False)
basename = findBasename(files[0], solver)
dt = findDt(out_dir, basename, solver)
vtkFile = vtkextract.vtkFile()
vtkFile.solver = solver
print 'postprocess1phase: ', len(
files), 'files in', out_dir, ': ', basename + '.#.vtk',
for i, file in enumerate(files):
print i,
sys.stdout.flush()
vtkFile.readFile(file, verbose=False)
#centers = vtkFile.getCenters()
vel = vtkFile.getVelocity()
u = np.sqrt(vel[:, 0]**2 + vel[:, 1]**2 + vel[:, 2]**2)
vol = vtkFile.getVolumes()
Ek.append(np.sum(u**2 * rho * vol / 2))
Vmax.append(np.max(u))
Vx_max.append(np.max(vel[:, 0]))
#p = vtkFile.getPressure()
#P.append(p.max())
if vtkFile.time >= 0:
t.append(vtkFile.time)
else:
t.append(i * dt)
print
t = np.array(t)
Ek = np.array(Ek)
Vmax = np.array(Vmax)
#P = np.array(P)
Vx_max = np.array(Vx_max)
saveData(out_dir,
basename,
var=[t, Vmax, Ek, Vx_max],
labels=['t', 'Vmax', 'Ek', 'Vx_max'])
