2528df0f75
These changes make it unnecessary to copy header files around during the build process, which tends to confuse IDEs and debuggers. The headers which comprise Cantera's external C++ interface are now in the 'include' directory. All of the samples and demos are now in the 'samples' subdirectory.
127 lines
3.4 KiB
Python
127 lines
3.4 KiB
Python
"""Fluids with complete liquid/vapor equations of state..
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These functions are defined for convenience only. They simply call
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function 'importPhase' to import the phase definition from file
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'liquidvapor.cti' """
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from importFromFile import importPhase
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import os
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from constants import *
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from ThermoPhase import ThermoPhase
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from set import setByName
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import XML
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import _cantera
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class PureFluid(ThermoPhase):
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"""
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A class for chemically-reacting solutions.
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Instances can be created to represent any type of solution -- a
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mixture of gases, a liquid solution, or a solid solution, for
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example.
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"""
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def __init__(self, src="", id=""):
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self.ckin = 0
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self._owner = 0
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self.verbose = 1
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fname = os.path.basename(src)
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ff = os.path.splitext(fname)
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if src:
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root = XML.XML_Node(name = 'doc', src = src, preprocess = 1)
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if id:
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s = root.child(id = id)
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else:
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s = root.child(name = "phase")
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self._name = s['id']
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# initialize the equation of state
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ThermoPhase.__init__(self, xml_phase=s)
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def __del__(self):
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ThermoPhase.__del__(self)
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def __repr__(self):
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return _cantera.phase_report(self._phase_id, self.verbose)
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def name(self):
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return self._name
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def set(self, **options):
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"""Set various properties.
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T --- temperature [K]
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P --- pressure [Pa]
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Rho --- density [kg/m3]
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V --- specific volume [m3/kg]
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H --- specific enthalpy [J/kg]
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U --- specific internal energy [J/kg]
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S --- specific entropy [J/kg/K]
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X --- mole fractions (string or array)
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Y --- mass fractions (string or array)
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Vapor --- saturated vapor fraction
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Liquid --- saturated liquid fraction
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"""
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setByName(self, options)
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def critTemperature(self):
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"""Critical temperature [K]."""
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return _cantera.thermo_getfp(self._phase_id,50)
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def critPressure(self):
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"""Critical pressure [Pa]."""
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return _cantera.thermo_getfp(self._phase_id,51)
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def critDensity(self):
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"""Critical density [kg/m3]."""
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return _cantera.thermo_getfp(self._phase_id,52)
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def vaporFraction(self):
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"""Vapor fraction."""
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return _cantera.thermo_getfp(self._phase_id,53)
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def setState_Psat(self, p, vaporFraction):
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"""Set the state of a saturated liquid/vapor mixture by
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specifying the pressure and vapor fraction."""
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_cantera.thermo_setfp(self._phase_id,8, p, vaporFraction)
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def setState_Tsat(self, t, vaporFraction):
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"""Set the state of a saturated liquid/vapor mixture by
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specifying the temperature and vapor fraction."""
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_cantera.thermo_setfp(self._phase_id,7, t, vaporFraction)
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def Water():
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return PureFluid('liquidvapor.cti','water')
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def Nitrogen():
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return PureFluid('liquidvapor.cti','nitrogen')
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def Methane():
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return PureFluid('liquidvapor.cti','methane')
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def Hydrogen():
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return PureFluid('liquidvapor.cti','hydrogen')
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def Oxygen():
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return PureFluid('liquidvapor.cti','oxygen')
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def HFC134a():
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return PureFluid('liquidvapor.cti','hfc134a')
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def CarbonDioxide():
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return PureFluid('liquidvapor.cti','carbondioxide')
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def Heptane():
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return PureFluid('liquidvapor.cti','heptane')
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