# Liquid phase
for i, p in enumerate(ps):
if p >= iapws1995.pc:
continue
# Get the bounding temperatures for this isobar
Tmin = TMIN
Tmax = Ts[i][0]
# Get the temperature series
T = numpy.linspace(Tmin, Tmax, 300)
# Get the density estimate
rhoest = iapws1992.rhosat_liquid(T[-1])
# Solve for the densities along the isobar, using the previous
# result as the next estimate
rho = []
for T_ in T[::-1]:
rho.append(newton(lambda rho_: iapws1995.p(rho_, T_)-p, rhoest))
rhoest = rho[-1]
rho = numpy.array(rho)[::-1]
# Get the entropies
s = iapws1995.s(rho, T)
# Concatenate the arrays
ss[i] = numpy.concatenate((s, ss[i]))
Ts[i] = numpy.concatenate((T, Ts[i]))
rhos.append(rho)
ps.append(p)
# Liquid and solid phases
for i, T in enumerate(Ts):
if iapws1995.Tt < T < iapws1995.Tc: # Liquid
# Get the minimum and maximum pressure
pmin = iapws1992.psat(T) # Liquid-vapor saturation pressure
pmax = PMAX
# Get the pressures and densities. Calculate successive points
# using the previous result as the next estimate.
p = numpy.logspace(numpy.log10(pmin), numpy.log10(pmax), 100)
rhoest = iapws1992.rhosat_liquid(T)
rho = []
for p_ in p:
# pylint: disable=cell-var-from-loop, undefined-loop-variable
rho.append(newton(lambda rho_: iapws1995.p(rho_, T) - p_, rhoest))
rhoest = rho[-1]
rho = numpy.array(rho)
# Concatenate the arrays
ps[i] = numpy.concatenate((ps[i], p))
rhos[i] = numpy.concatenate((rhos[i], rho))
elif T < iapws1995.Tt: # Solid
# Get the minimum and maximum pressure
pmin = iapws2011.psubl_ice_Ih(T)