# Setup
# -------------------------------------------------------------------
# filenames
config_filename = 'config_NACA0012.cfg'
design_filename = 'design_NACA0012.pkl'
project_filename = 'project_NACA0012.pkl'
# load project
The_Project = libSU2.load_data(project_filename)
# update project folder
The_Project.folder_self = os.getcwd()
# read config
config_data = libSU2.Get_ConfigParams(config_filename)
n_DV = len(config_data['DEFINITION_DV']['KIND'])
# design variable to change
i_DV = 9 # lower surface, half-chord
# design variable values
DV_vals = numpy.linspace(-0.02, 0.02, 11)
# setup config changes
config_delta = []
for X in DV_vals:
DV_X = numpy.zeros(n_DV)
DV_X[i_DV] = X
config_delta.append({'VARIABLES': DV_X})
def process_surface_adjoint(config_filename,
filter_type='LAPLACE',
marker_name='airfoil',
chord_length=1.0):
print('')
print(
'-------------------------------------------------------------------------'
)
print(
'| SU2 Suite (Process Surface Adjoint) |'
)
print(
'-------------------------------------------------------------------------'
)
print('')
# some other defaults
c_clip = 0.01 # percent chord to truncate
fft_copy = 5 # number of times to copy the fft signal
smth_len = 0.05 # percent chord smoothing window length
lapl_len = 1e-4 # laplace smoothing parameter
# read config file
config_data = libSU2.Get_ConfigParams(config_filename)
surface_filename = config_data['SURFACE_ADJ_FILENAME'] + '.csv'
print surface_filename
mesh_filename = config_data['MESH_FILENAME']
gradient = config_data['ADJ_OBJFUNC']
print('Config filename = %s' % config_filename)
print('Surface filename = %s' % surface_filename)
print('Filter Type = %s' % filter_type)
# read adjoint data
adj_data = np.genfromtxt(surface_filename,
dtype=float,
delimiter=',',
skip_header=1)
# read mesh data
mesh_data = libSU2_mesh.Read_Mesh(mesh_filename)
# proces adjoint data
P = map(int, adj_data[:, 0])
X = adj_data[:, 6].copy()
Y = adj_data[:, 7].copy()
Sens = adj_data[:, 1].copy()
PsiRho = adj_data[:, 2].copy()
I = range(0, len(P)) # important - for unsorting durring write
# store in dict by point index
adj_data_dict = dict(zip(P, zip(X, Y, Sens, PsiRho, I)))
# sort airfoil points
iP_sorted, _ = libSU2_mesh.sort_Airfoil(mesh_data, marker_name)
assert (len(iP_sorted) == len(P))
# rebuild airfoil loop
i = 0
for this_P in iP_sorted:
# the adjoint data entry
this_adj_data = adj_data_dict[this_P]
# re-sort
P[i] = this_P
X[i] = this_adj_data[0]
Y[i] = this_adj_data[1]
Sens[i] = this_adj_data[2]
PsiRho[i] = this_adj_data[3]
I[i] = this_adj_data[4]
# next
i = i + 1
#: for each point
# calculate arc length
S = np.sqrt(np.diff(X)**2 + np.diff(Y)**2) / chord_length
S = np.cumsum(np.hstack([0, S]))
# tail trucating, by arc length
I_clip_lo = S < S[0] + c_clip
I_clip_hi = S > S[-1] - c_clip
S_clip = S.copy()
Sens_clip = Sens.copy()
Sens_clip[I_clip_hi] = Sens_clip[I_clip_hi][0]
Sens_clip[I_clip_lo] = Sens_clip[I_clip_lo][-1]
# some edge length statistics
dS_clip = np.diff(S_clip)
min_dS = np.min(dS_clip)
mean_dS = np.mean(dS_clip)
max_dS = np.max(dS_clip)
#print 'min_dS = %.4e ; mean_dS = %.4e ; max_dS = %.4e' % ( min_dS , mean_dS , max_dS )
# --------------------------------------------
# APPLY FILTER
if filter_type == 'FOURIER':
Freq_notch = [1 / max_dS, np.inf] # the notch frequencies
Sens_filter, Frequency, Power = fft_filter(S_clip, Sens_clip,
Freq_notch, fft_copy)
#Sens_filter = smooth(S_clip,Sens_filter, 0.03,'blackman') # post smoothing
elif filter_type == 'WINDOW':
Sens_filter = window(S_clip, Sens_clip, smth_len, 'blackman')
elif filter_type == 'LAPLACE':
Sens_filter = laplace(S_clip, Sens_clip, lapl_len)
elif filter_type == 'SHARPEN':
Sens_smooth = smooth(S_clip, Sens_clip, smth_len / 5,
'blackman') # pre smoothing
Sens_smoother = smooth(S_clip, Sens_smooth, smth_len, 'blackman')
Sens_filter = Sens_smooth + (Sens_smooth - Sens_smoother) # sharpener
else:
raise Exception, 'unknown filter type'
# --------------------------------------------
# PLOTTING
if pylab_imported:
# start plot
fig = plt.figure(gradient)
plt.clf()
#if not fig.axes: # for comparing two filter calls
#plt.subplot(1,1,1)
#ax = fig.axes[0]
#if len(ax.lines) == 4:
#ax.lines.pop(0)
#ax.lines.pop(0)
# SENSITIVITY
plt.plot(S, Sens, color='b') # original
plt.plot(S_clip, Sens_filter, color='r') # filtered
plt.xlim(-0.1, 2.1)
plt.ylim(-5, 5)
plt.xlabel('Arc Length')
plt.ylabel('Surface Sensitivity')
#if len(ax.lines) == 4:
#seq = [2, 2, 7, 2]
#ax.lines[0].set_dashes(seq)
#ax.lines[1].set_dashes(seq)
plot_filename = os.path.splitext(surface_filename)[0] + '.png'
plt.savefig('Sens_' + plot_filename, dpi=300)
# zoom in
plt.ylim(-0.4, 0.4)
plt.savefig('Sens_zoom_' + plot_filename, dpi=300)
# SPECTRAL
if filter_type == 'FOURIER':
plt.figure('SPECTRAL')
plt.clf()
plt.plot(Frequency, Power)
#plt.xlim(0,Freq_notch[0]+10)
plt.xlim(0, 200)
plt.ylim(0, 0.15)
plt.xlabel('Frequency (1/C)')
plt.ylabel('Surface Sensitivity Spectal Power')
plt.savefig('Spectral_' + plot_filename, dpi=300)
#: if spectral plot
#: if plot
# --------------------------------------------
# SAVE SURFACE FILE
# reorder back to input surface points
Sens_out = np.zeros(len(S))
Sens_out[I] = Sens_filter # left over from sort
adj_data[:, 1] = Sens_out
# get surface header
surface_orig = open(surface_filename, 'r')
header = surface_orig.readline()
surface_orig.close()
# get list of prefix names
prefix_names = libSU2.get_AdjointPrefix(None)
prefix_names = prefix_names.values()
# add filter prefix, before adjoint prefix
surface_filename_split = surface_filename.rstrip('.csv').split('_')
if surface_filename_split[-1] in prefix_names:
surface_filename_split = surface_filename_split[0:-1] + [
'filtered'
] + [surface_filename_split[-1]]
else:
surface_filename_split = surface_filename_split + ['filtered']
surface_filename_new = '_'.join(surface_filename_split) + '.csv'
# write filtered surface file (only updates Sensitivity)
surface_new = open(surface_filename_new, 'w')
surface_new.write(header)
for row in adj_data:
for i, value in enumerate(row):
if i > 0:
surface_new.write(', ')
if i == 0:
surface_new.write('%i' % value)
else:
surface_new.write('%.16e' % value)
surface_new.write('\n')
surface_new.close()
print('')
print(
'----------------- Exit Success (Process Surface Adjoint) ----------------'
)
print('')
return
def mesh_adaptation(filename,
partitions=0,
cycles=1,
overwrite=False,
save_all=False):
# General and default parameters
Config_INP_filename = filename
Config_CFD_filename = "config_CFD_" + Config_INP_filename
Config_MAC_filename = "config_MAC_" + Config_INP_filename
#Mesh_MAC_filename = "mesh_MAC_" + filename.replace(".cfg",".su2")
finest_mesh_filename = "mesh_finest.su2"
finest_flow_filename = "restart_flow_finest.dat"
finest_lin_filename = "restart_lin_finest.dat"
finest_adj_filename = "restart_adj_finest.dat"
# assumes serial with partitions = 1
if partitions == 1: partitions = 0
# Get parameters
params_get = libSU2.Get_ConfigParams(Config_INP_filename)
kind_adapt = params_get['KIND_ADAPT']
objfunc = params_get['ADJ_OBJFUNC']
restart_flow_file = params_get['RESTART_FLOW_FILENAME']
restart_adj_file = params_get['RESTART_ADJ_FILENAME']
original_mesh_file = params_get['MESH_FILENAME']
#output_mesh_file = params_get['MESH_OUT_FILENAME']
Mesh_MAC_filename = params_get['MESH_OUT_FILENAME']
cadj_prefix = libSU2.get_AdjointPrefix(objfunc)
# Get solution file names
volume_flow_file = params_get['VOLUME_FLOW_FILENAME']
volume_adj_file = params_get['VOLUME_ADJ_FILENAME']
surface_flow_file = params_get['SURFACE_FLOW_FILENAME']
surface_adj_file = params_get['SURFACE_ADJ_FILENAME']
history_file = params_get['CONV_FILENAME']
# Get mesh filenames and filetypes
mesh_filetype = params_get['MESH_FORMAT']
if mesh_filetype == "CGNS":
error_str = "Currently cannot support mesh adaptation with CGNS grid files. Please convert your CGNS mesh to SU2 format using the CGNS_TO_SU2 flag in the configuration file, re-specify the mesh file to the native .su2 file and set the MESH_FORMAT flag to SU2."
print "\n*****\n" + error_str + "\n*****\n"
return 1
elif mesh_filetype == "NETCDF_ASCII":
error_str = "Currently cannot support mesh adaptation with NETCDF_ASCII grid files. Please convert your mesh to SU2 format, re-specify the mesh file to the native .su2 file and set the MESH_FORMAT flag to SU2."
print "\n*****\n" + error_str + "\n*****\n"
return 1
# Get output solution filetypes
output_filetype = params_get['OUTPUT_FORMAT']
if output_filetype == "TECPLOT":
vol_file_ext = ".plt"
elif output_filetype == "PARAVIEW":
vol_file_ext = ".vtk"
if ((kind_adapt == "ROBUST") or (kind_adapt == "COMPUTABLE_ROBUST")):
restart_lin_file = params_get['RESTART_LIN_FILENAME']
# Loop over number of adaptation cycles
for iAdaptCycle in range(cycles):
# Copy original input file to working files
shutil.copy(Config_INP_filename, Config_MAC_filename)
shutil.copy(Config_INP_filename, Config_CFD_filename)
# Run direct flow simulation
# For iAdaptCycle == 0, store restart file, objective function and original mesh file
params_set = {'MATH_PROBLEM': 'DIRECT'}
if iAdaptCycle > 0:
params_set.update({
'RESTART_SOL': 'YES',
'ADJ_OBJFUNC': objfunc,
'RESTART_FLOW_FILENAME': restart_flow_file,
'RESTART_ADJ_FILENAME': restart_adj_file,
'SOLUTION_FLOW_FILENAME': restart_flow_file,
'MESH_FILENAME': Mesh_MAC_filename
})
if ((kind_adapt == "ROBUST")
or kind_adapt == ("COMPUTABLE_ROBUST")):
params_set.update({'RESTART_LIN_FILENAME': restart_lin_file})
# Load the new config file options and run the direct problem
libSU2.Set_ConfigParams(Config_CFD_filename, params_set)
if partitions > 1:
parallel_computation(Config_CFD_filename, partitions)
else:
libSU2_run.SU2_CFD(Config_CFD_filename, partitions)
# Copy flow solution & history file
if save_all:
print "Saving cycle " + str(
iAdaptCycle) + " flow solution and history files..."
print "Saving " + volume_flow_file + "_cycle" + str(
iAdaptCycle) + vol_file_ext
print "Saving " + surface_flow_file + "_cycle" + str(
iAdaptCycle) + vol_file_ext
print "Saving " + history_file + "_flow_cycle" + str(
iAdaptCycle) + vol_file_ext
shutil.move(
volume_flow_file + vol_file_ext,
volume_flow_file + "_cycle" + str(iAdaptCycle) + vol_file_ext)
shutil.move(
surface_flow_file + vol_file_ext,
surface_flow_file + "_cycle" + str(iAdaptCycle) + vol_file_ext)
shutil.move(
surface_flow_file + ".csv",
surface_flow_file + "_cycle" + str(iAdaptCycle) + ".csv")
shutil.move(
history_file + vol_file_ext,
history_file + "_flow_cycle" + str(iAdaptCycle) + vol_file_ext)
# If needed, run the adjoint simulation
# For the first adaption cycle, use the filenames of the orignal .cfg file
if (kind_adapt == "GRAD_ADJOINT" or kind_adapt == "GRAD_FLOW_ADJ"
or kind_adapt == "ROBUST" or kind_adapt == "COMPUTABLE_ROBUST"
or kind_adapt == "COMPUTABLE" or kind_adapt == "REMAINING"):
params_set = {
'MATH_PROBLEM': 'ADJOINT',
'SOLUTION_FLOW_FILENAME': restart_flow_file
}
if iAdaptCycle > 0:
params_set.update({
'RESTART_SOL': 'YES',
'SOLUTION_ADJ_FILENAME': restart_adj_file,
'MESH_FILENAME': Mesh_MAC_filename
})
# Load the new config file options and run the adjoint problem
libSU2.Set_ConfigParams(Config_CFD_filename, params_set)
if partitions > 1:
parallel_computation(Config_CFD_filename, partitions)
else:
libSU2_run.SU2_CFD(Config_CFD_filename, partitions)
# Copy adjoint solution & history file
if save_all:
print "Saving cycle " + str(
iAdaptCycle) + " adjoint solution and history files..."
print "Saving " + volume_adj_file + "_cycle" + str(
iAdaptCycle) + vol_file_ext
print "Saving " + surface_adj_file + "_adj_cycle" + str(
iAdaptCycle) + vol_file_ext
print "Saving " + history_file + "_flow_cycle" + str(
iAdaptCycle) + vol_file_ext
shutil.move(
volume_adj_file + vol_file_ext, volume_adj_file +
"_cycle" + str(iAdaptCycle) + vol_file_ext)
shutil.move(
surface_adj_file + vol_file_ext, surface_adj_file +
"_cycle" + str(iAdaptCycle) + vol_file_ext)
shutil.move(
surface_adj_file + ".csv",
surface_adj_file + "_cycle" + str(iAdaptCycle) + ".csv")
shutil.move(
history_file + vol_file_ext, history_file + "_adj_cycle" +
str(iAdaptCycle) + vol_file_ext)
# If needed, change the parameters to run the first linear simulation
# For the first adaptation cycle, use the filenames from the original .cfg file
if kind_adapt == "COMPUTABLE_ROBUST":
params_set = {
'MATH_PROBLEM': 'LINEARIZED',
'SOLUTION_FLOW_FILENAME': restart_flow_file
}
if iAdaptCycle > 0:
params_set.update({
'RESTART_SOL': 'YES',
'RESTART_LIN_FILENAME': restart_lin_file,
'MESH_FILENAME': Mesh_MAC_filename
})
# Load the new config file options and run the linearized problem
libSU2.Set_ConfigParams(Config_CFD_filename, params_set)
if partitions > 1:
parallel_computation(Config_CFD_filename, partitions)
else:
libSU2_run.SU2_CFD(Config_CFD_filename, partitions)
# Change the parameters to do a direct and adjoint iteration over a fine grid
if ((kind_adapt == "ROBUST" or kind_adapt == "COMPUTABLE"
or kind_adapt == "COMPUTABLE_ROBUST" or kind_adapt == "REMAINING")
and (iAdaptCycle < cycles - 1 or cycles == 1)):
# Create the fine grid and interpolate the flow solution from coarse to refined grid
params_set = {
'KIND_ADAPT': "FULL_FLOW",
'SOLUTION_FLOW_FILENAME': restart_flow_file,
'RESTART_FLOW_FILENAME': finest_flow_filename,
'MESH_FILENAME': original_mesh_file,
'MESH_OUT_FILENAME': finest_mesh_filename
}
if iAdaptCycle > 0:
params_set.update({'MESH_FILENAME': Mesh_MAC_filename})
# Run the mesh adaptation module
libSU2.Set_ConfigParams(Config_MAC_filename, params_set)
libSU2_run.SU2_MAC(Config_MAC_filename, partitions)
# Create the fine grid and interpolate the adjoint solution from coarse to refined grid
params_set = {
'KIND_ADAPT': "FULL_ADJOINT",
'SOLUTION_FLOW_FILENAME': restart_flow_file,
'SOLUTION_ADJ_FILENAME': restart_adj_file,
'RESTART_FLOW_FILENAME': finest_flow_filename,
'RESTART_ADJ_FILENAME': finest_adj_filename,
'MESH_FILENAME': original_mesh_file,
'MESH_OUT_FILENAME': finest_mesh_filename
}
if iAdaptCycle > 0:
params_set.update({'MESH_FILENAME': Mesh_MAC_filename})
# Run the mesh adaptation module
libSU2.Set_ConfigParams(Config_MAC_filename, params_set)
libSU2_run.SU2_MAC(Config_MAC_filename, partitions)
# Create the fine grid and interpolate the linear solution from coarse to refined grid
if kind_adapt == "COMPUTABLE_ROBUST":
params_set = {
'KIND_ADAPT': "FULL_LINEAR",
'SOLUTION_FLOW_FILENAME': restart_flow_file,
'SOLUTION_LIN_FILENAME': restart_lin_file,
'RESTART_FLOW_FILENAME': finest_flow_filename,
'RESTART_ADJ_FILENAME': finest_lin_filename,
'MESH_FILENAME': original_mesh_file,
'MESH_OUT_FILENAME': finest_mesh_filename
}
if iAdaptCycle > 0:
params_set.update({'MESH_FILENAME': Mesh_MAC_filename})
# Run the mesh adaptation module
libSU2.Set_ConfigParams(Config_MAC_filename, params_set)
libSU2_run.SU2_MAC(Config_MAC_filename, partitions)
# Change the parameters to do one iteration of the flow solver on the finest grid
# Always start from the interpolated solution and store the residual in the solution file for finest grid
# No multigrid or convergence acceleration
params_set = {
'MATH_PROBLEM': 'DIRECT',
'EXT_ITER': 2,
'RESTART_SOL': 'YES',
'SOLUTION_FLOW_FILENAME': finest_flow_filename,
'STORE_RESIDUAL': 'YES',
'RESTART_FLOW_FILENAME': finest_flow_filename,
'MESH_FILENAME': finest_mesh_filename,
'FULLMG': 'NO',
'MGLEVEL': 0,
'MGCYCLE': 0,
'MG_PRE_SMOOTH': '( 0 )',
'MG_POST_SMOOTH': '( 0 )',
'MG_CORRECTION_SMOOTH': '( 0 )'
}
libSU2.Set_ConfigParams(Config_CFD_filename, params_set)
if partitions > 1:
parallel_computation(Config_CFD_filename, partitions)
else:
libSU2_run.SU2_CFD(Config_CFD_filename, partitions)
# Change the parameters to do one iteration of the adjoint solver on the finest grid
# Always start from the interpolated solution and store the residual in the solution file for finest grid
# No multigrid or convergence acceleration
params_set = {
'MATH_PROBLEM': 'ADJOINT',
'EXT_ITER': 2,
'RESTART_SOL': 'YES',
'SOLUTION_FLOW_FILENAME': finest_flow_filename,
'SOLUTION_ADJ_FILENAME': finest_adj_filename,
'MESH_FILENAME': finest_mesh_filename,
'FULLMG': 'NO',
'MGLEVEL': 0,
'MGCYCLE': 0,
'MG_PRE_SMOOTH': '( 0 )',
'MG_POST_SMOOTH': '( 0 )',
'MG_CORRECTION_SMOOTH': '( 0 )'
}
libSU2.Set_ConfigParams(Config_CFD_filename, params_set)
if partitions > 1:
parallel_computation(Config_CFD_filename, partitions)
else:
libSU2_run.SU2_CFD(Config_CFD_filename, partitions)
# Change the parameters to do one iteration of the linear solver on the finest grid
# Always start from the interpolated solution and store the residual in the solution file for finest grid
# No multigrid or convergence acceleration
if kind_adapt == "COMPUTABLE_ROBUST":
params_set = {
'MATH_PROBLEM': 'LINEARIZED',
'EXT_ITER': 2,
'RESTART_SOL': 'YES',
'SOLUTION_FLOW_FILENAME': finest_flow_filename,
'SOLUTION_LIN_FILENAME': finest_lin_filename,
'RESTART_LIN_FILENAME': finest_lin_filename,
'MESH_FILENAME': finest_mesh_filename,
'FULLMG': 'NO',
'MGLEVEL': 0,
'MGCYCLE': 0,
'MG_PRE_SMOOTH': '( 0 )',
'MG_POST_SMOOTH': '( 0 )',
'MG_CORRECTION_SMOOTH': '( 0 )'
}
libSU2.Set_ConfigParams(Config_CFD_filename, params_set)
if partitions > 1:
parallel_computation(Config_CFD_filename, partitions)
else:
libSU2_run.SU2_CFD(Config_CFD_filename, partitions)
# Perform adaptation using above solution files
if ((kind_adapt == "GRAD_FLOW") or (kind_adapt == "GRAD_ADJOINT")
or (kind_adapt == "GRAD_FLOW_ADJ")):
params_set = {
'SOLUTION_FLOW_FILENAME': restart_flow_file,
'SOLUTION_ADJ_FILENAME': restart_adj_file
}
elif ((kind_adapt == "COMPUTABLE") or (kind_adapt == "REMAINING")):
params_set = {
'SOLUTION_FLOW_FILENAME': finest_flow_filename,
'SOLUTION_ADJ_FILENAME': finest_adj_filename,
'RESTART_FLOW_FILENAME': restart_flow_file,
'RESTART_ADJ_FILENAME': restart_adj_file
}
elif ((kind_adapt == "ROBUST") or (kind_adapt == "COMPUTABLE_ROBUST")):
params_set = {
'SOLUTION_FLOW_FILENAME': finest_flow_filename,
'SOLUTION_ADJ_FILENAME': finest_adj_filename,
'SOLUTION_LIN_FILENAME': finest_lin_filename,
'RESTART_FLOW_FILENAME': restart_flow_file,
'RESTART_ADJ_FILENAME': restart_adj_file,
'RESTART_LIN_FILENAME': restart_lin_file
}
params_set.update({
'KIND_ADAPT': kind_adapt,
'MESH_OUT_FILENAME': Mesh_MAC_filename
})
if iAdaptCycle > 0:
params_set.update({'MESH_FILENAME': Mesh_MAC_filename})
# Run the mesh adaptation module
libSU2.Set_ConfigParams(Config_MAC_filename, params_set)
libSU2_run.SU2_MAC(Config_MAC_filename, partitions)
# Copy cycle mesh file
if save_all:
print "Saving cycle " + str(iAdaptCycle) + " mesh file..."
shutil.copy(
Mesh_MAC_filename,
Mesh_MAC_filename.replace(".su2", "_cycle" + str(iAdaptCycle) +
".su2"))
# Clean up
if overwrite: os.rename(Mesh_MAC_filename, original_mesh_file)
if ((kind_adapt == "ROBUST") or (kind_adapt == "COMPUTABLE")
or (kind_adapt == "COMPUTABLE_ROBUST")
or (kind_adapt == "REMAINING")):
os.remove(finest_mesh_filename)
os.remove(finest_flow_filename)
if kind_adapt == "COMPUTABLE_ROBUST":
os.remove(finest_lin_filename)
if save_all:
os.remove(Mesh_MAC_filename)
os.remove(Config_MAC_filename)
os.remove(Config_CFD_filename)
