va = 1.0 / gas.density
n = np.int((va - 0.4 * vcj) / 0.01)
PH2 = np.zeros(n + 1, float)
vH2 = np.zeros(n + 1, float)
PH2[0] = gas.P / ct.one_atm
vH2[0] = va
i = 0
vb = va
while (i < n):
vb = va - (i + 1) * 0.01
#Always starts at new volume and previous temperature to find next state
fval = fsolve(hug_eq, Ta, args=(vb, h1, P1, v1, gas))
gas.TD = fval, 1.0 / vb
PH2[i + 1] = gas.P / ct.one_atm
vH2[i + 1] = vb
i = i + 1
print('Product Hugoniot Array Created')
if (fname == 0):
print('No output files created')
else:
#Create Output Data File for Tecplot
import datetime
a = np.size(PR) - 1
k = 0
d = datetime.date.today()
P = P1 / ct.one_atm
va = 1 / gas.density
PH2 = [gas.P / ct.one_atm]
vH2 = [va]
Grun = [gruneisen_eq(gas)]
gamma = [(soundspeed_eq(gas))**2 / (vH2[0] * gas.P)]
denom = [1 + Grun[0] * (vH2[0] - v1) / (2 * vH2[0])]
i = 0
vb = va
while vb > vmin:
i = i + 1
vb = va - i * .01
# use new volume and previous temperature to find next state
fval = fsolve(hug_eq, Ta, args=(vb, h1, P1, v1, gas))
gas.TD = fval, 1 / vb
PH2.append(gas.P / ct.one_atm)
vH2.append(vb)
Grun.append(gruneisen_eq(gas))
gamma.append((soundspeed_eq(gas))**2 / (vH2[-1] * gas.P))
denom.append(1 + Grun[-1] * (vH2[-1] - v1) / (2 * vH2[-1]))
print('Product Hugoniot Array Created')
## isentropes near CJ point
gas.TPX = tcj, pcj, qcj
s = scj * .98
deltas = 0.01 * scj
jmax = 4