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postProc.py
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import numpy as np
import json
import matplotlib.pyplot as plt
import sys
import os
import h5py
###############################################################################
## Read Exact Solution ##
###############################################################################
def readExact():
# Open file
f = open('exact.txt', 'r')
x = []
u = []
p = []
rho = []
e = []
# Loop over lines and extract variables of interest
for line in f:
line = line.strip()
columns = line.split()
x.append( float(columns[0]))
rho.append(float(columns[1]))
u.append( float(columns[2]))
p.append( float(columns[3]))
f.close()
x = [(xp+1)*0.5 for xp in x]
e = [xp/xr/0.4 for xp, xr in zip(p,rho)]
return x, u, p, rho, e
###############################################################################
# Read Exact Solution #
###############################################################################
xExact, uExact, pExact, rhoExact, eExact = readExact()
def L2(err,dx):
tot = sum(map(sum, err**2*dx[:,:,0]*dx[:,:,1]*dx[:,:,2]))
vol = sum(map(sum, dx[:,:,0]*dx[:,:,1]*dx[:,:,2]))
return np.sqrt(tot/vol)
def process(case, i):
dir_name = os.path.join(os.environ['HTR_DIR'], 'testcases/LaxProblem')
soleil_input_file = os.path.join(dir_name, str(case)+'.json')
##############################################################################
# Read Prometeo Input File #
##############################################################################
with open(soleil_input_file) as f:
data = json.load(f)
xNum = data["Grid"]["xNum"]
xWidth = data["Grid"]["xWidth"]
dt = data["Integrator"]["fixedDeltaTime"]
nstep = data["Integrator"]["maxIter"]
time = dt*nstep
filename = os.path.join(dir_name, str(case)+'/sample0/fluid_iter'+str(nstep).zfill(10)+'/0,0,0-'+str(case+1)+',0,0.hdf')
hdf_filename = filename
##############################################################################
# Read Prometeo Output Data #
##############################################################################
f = h5py.File(hdf_filename, 'r')
# Get the data
x = f['centerCoordinates'][0,0,:][:,0]
dx = f['cellWidth' ][0,0,:][:,0]
u = f['velocity' ][0,0,:][:,0]
p = f['pressure' ][0,0,:]
rho = f['rho' ][0,0,:]
T = f['temperature' ][0,0,:]
e = T/0.4
##############################################################################
# Plot #
##############################################################################
plt.figure(1+i*4)
plt.plot(xExact, uExact, '-k', label='Reference solution')
plt.plot( x, u, '-ob', label='HTR solver', markersize=4.5)
plt.xlabel(r'$x$', fontsize = 20)
plt.ylabel(r'$u$', fontsize = 20)
plt.legend()
plt.savefig('Velocity_'+str(case)+'.eps', bbox_inches='tight')
plt.figure(2+i*4)
plt.plot(xExact, pExact, '-k', label='Reference solution')
plt.plot( x, p, '-ob', label='HTR solver', markersize=4.5)
plt.xlabel(r'$x$', fontsize = 20)
plt.ylabel(r'$P$', fontsize = 20)
plt.legend()
plt.savefig('Pressure_'+str(case)+'.eps', bbox_inches='tight')
plt.figure(3+i*4)
plt.plot(xExact, rhoExact, '-k', label='Reference solution')
plt.plot( x, rho, '-ob', label='HTR solver', markersize=4.5)
plt.xlabel(r'$x$' , fontsize = 20)
plt.ylabel(r'$\rho$', fontsize = 20)
plt.legend()
plt.savefig('Density_'+str(case)+'.eps', bbox_inches='tight')
plt.figure(4+i*4)
plt.plot(xExact, eExact, '-k', label='Reference solution')
plt.plot( x, e, '-ob', label='HTR solver', markersize=4.5)
plt.xlabel(r'$x$', fontsize = 20)
plt.ylabel(r'$e$', fontsize = 20)
plt.legend()
plt.savefig('InternalEnergy_'+str(case)+'.eps', bbox_inches='tight')
return x, u, p, rho, e
plt.rcParams.update({'font.size': 16})
#cases = (100, 100)
#for i, case in enumerate(cases):
# x, u, p, r, e = process(case, i)
x, u, p, r, e = process(100, 0)
plt.show()