PorousFlowRelativePermeabilityVG.h File Reference

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Classes
class	PorousFlowRelativePermeabilityVG
	Material to calculate van Genuchten-type relative permeability of an arbitrary phase given the saturation and exponent of that phase. More...

Functions
template<>
InputParameters	validParams< PorousFlowRelativePermeabilityVG > ()

Function Documentation

validParams< PorousFlowRelativePermeabilityVG >()

template<>

InputParameters validParams< PorousFlowRelativePermeabilityVG >

(

)

Definition at line 17 of file PorousFlowRelativePermeabilityVG.C.

{
  InputParameters params = validParams<PorousFlowRelativePermeabilityBase>();
  params.addRequiredRangeCheckedParam<Real>(
      "m", "m > 0 & m < 1", "The van Genuchten exponent of the phase");
  params.addRangeCheckedParam<Real>("seff_turnover",
                                    1.0,
                                    "seff_turnover > 0 & seff_turnover <= 1",
                                    "The relative permeability will be a cubic for seff > "
                                    "seff_turnover.  The cubic is chosen so that its derivative "
                                    "and value matche the VG function at seff=seff_turnover");
  params.addParam<bool>("zero_derivative",
                        false,
                        "Employ a cubic for seff>seff_turnover that has zero derivative at seff=1");
  params.addParam<bool>("wetting",
                        true,
                        "If true, use the van Genuchten form appropriate for a wetting (liquid) "
                        "phase.  If false, use the non-wetting (gas) expression.");
  params.addClassDescription("This Material calculates relative permeability of a phase "
                             "using the van Genuchten model");
  return params;
}