MollifiedLangmuirMaterial.C File Reference

Go to the source code of this file.

Functions
	registerMooseObject ("ChemicalReactionsApp", MollifiedLangmuirMaterial)
template<>
InputParameters	validParams< MollifiedLangmuirMaterial > ()

Function Documentation

registerMooseObject()

registerMooseObject	(	"ChemicalReactionsApp"	,
		MollifiedLangmuirMaterial
	)

validParams< MollifiedLangmuirMaterial >()

template<>

InputParameters validParams< MollifiedLangmuirMaterial >

(

)

Definition at line 16 of file MollifiedLangmuirMaterial.C.

{
  InputParameters params = validParams<Material>();
 
  params.addRequiredCoupledVar(
      "one_over_desorption_time_const",
      "Time constant for Langmuir desorption (gas moving from matrix to porespace).  Units [s]");
  params.addRequiredCoupledVar(
      "one_over_adsorption_time_const",
      "Time constant for Langmuir adsorption (gas moving from porespace to matrix).  Units [s].");
  params.addRequiredParam<Real>("langmuir_density",
                                "This is (Langmuir volume)*(density of gas at standard temp and "
                                "pressure).  Langmuir volume is measured in (gas volume)/(matrix "
                                "volume).  (Methane density(101kPa, 20degC) = 0.655kg/m^3.  "
                                "Methane density(101kPa, 0degC) = 0.715kg/m^3.)  Units [kg/m^3]");
  params.addRequiredParam<Real>("langmuir_pressure", "Langmuir pressure.  Units Pa");
  params.addRequiredCoupledVar("conc_var", "The concentration of gas variable");
  params.addRequiredCoupledVar("pressure_var", "The gas porepressure variable");
  params.addRangeCheckedParam<Real>("mollifier",
                                    0.1,
                                    "mollifier > 0",
                                    "The reciprocal of time constants will be "
                                    "one_over_time_const*tanh( |conc_var - "
                                    "equilib_conc|/(mollifier*langmuir_density)).  So for "
                                    "mollifier very small you will get a stepchange between "
                                    "desorption and adsorption, but for mollifier bigger you "
                                    "will be a gradual change");
  params.addClassDescription("Material type that holds info regarding MollifiedLangmuir desorption "
                             "from matrix to porespace and viceversa");
  return params;
}