def test_phase_of_matter(self):
self.water.TP = 300, 101325
self.assertEqual(self.water.phase_of_matter, "liquid")
self.water.TP = 500, 101325
self.assertEqual(self.water.phase_of_matter, "gas")
self.water.TP = self.water.critical_temperature * 2, 101325
self.assertEqual(self.water.phase_of_matter, "supercritical")
self.water.TP = 300, self.water.critical_pressure * 2
self.assertEqual(self.water.phase_of_matter, "supercritical")
self.water.TQ = 300, 0.4
self.assertEqual(self.water.phase_of_matter, "liquid-gas-mix")
# These cases work after fixing GH-786
n2 = ct.Nitrogen()
n2.TP = 100, 1000
self.assertEqual(n2.phase_of_matter, "gas")
co2 = ct.CarbonDioxide()
self.assertEqual(co2.phase_of_matter, "gas")
def test_temperature_limits(self):
co2 = ct.CarbonDioxide()
self.assertNear(co2.min_temp, 216.54)
self.assertNear(co2.max_temp, 1500.0)
@author: mohith_sai
"""
"""
Print the critical state properties for the fluids for which Cantera has
built-in liquid/vapor equations of state.
"""
import cantera as ct
fluids = {
'water': ct.Water(),
'nitrogen': ct.Nitrogen(),
'methane': ct.Methane(),
'hydrogen': ct.Hydrogen(),
'oxygen': ct.Oxygen(),
'carbon dioxide': ct.CarbonDioxide(),
'heptane': ct.Heptane(),
'hfc134a': ct.Hfc134a()
}
print('Critical State Properties')
print('%20s %10s %10s %10s' % ('Fluid', 'Tc [K]', 'Pc [Pa]', 'Zc'))
for name in fluids:
f = fluids[name]
tc = f.critical_temperature
pc = f.critical_pressure
rc = f.critical_density
mw = f.mean_molecular_weight
zc = pc * mw / (rc * ct.gas_constant * tc)
print('%20s %10.4g %10.4G %10.4G' % (name, tc, pc, zc))
