RichardsDensityVDW.C File Reference

Go to the source code of this file.

Functions
	registerMooseObject ("RichardsApp", RichardsDensityVDW)
template<>
InputParameters	validParams< RichardsDensityVDW > ()

Function Documentation

registerMooseObject()

registerMooseObject	(	"RichardsApp"	,
		RichardsDensityVDW
	)

validParams< RichardsDensityVDW >()

template<>

InputParameters validParams< RichardsDensityVDW >

(

)

Definition at line 17 of file RichardsDensityVDW.C.

{
  InputParameters params = validParams<RichardsDensity>();
  params.addRequiredRangeCheckedParam<Real>(
      "a",
      "a > 0",
      "Parameter 'a' in the van der Waals expression (P + n^2 a/V^2)(V - nb) = nRT.  "
      "Example for methane 0.2303 Pa m^6 mol^-2");
  params.addRequiredRangeCheckedParam<Real>(
      "b",
      "b > 0",
      "Parameter 'b' in the van der Waals expression (P + n^2 a/V^2)(V - nb) = nRT.  "
      "Example for methane 4.31E-5 m^3/mol");
  params.addRequiredRangeCheckedParam<Real>(
      "temperature", "temperature > 0", "Temperature in Kelvin");
  params.addRequiredRangeCheckedParam<Real>(
      "molar_mass",
      "molar_mass > 0",
      "Molar mass of the gas.  Example for methane 16.04246E-3 kg/mol");
  params.addRangeCheckedParam<Real>("infinity_ratio",
                                    10,
                                    "infinity_ratio > 0",
                                    "For P<0 the density is not physically defined, "
                                    "but numerically it is advantageous to define "
                                    "it:  density(P=-infinity) = "
                                    "-infinity_ratio*molar_mass, and density tends "
                                    "exponentially towards this value as P -> "
                                    "-infinity.  (Units are mol/m^3).");
  params.addClassDescription("Density of van der Waals gas.");
  return params;
}