SwitchingFunction3PhaseMaterial.h File Reference

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Classes
class	SwitchingFunction3PhaseMaterial
	Material class to provide switching functions that prevent formation of a third phase at a two-phase interface. More...

Functions
template<>
InputParameters	validParams< SwitchingFunction3PhaseMaterial > ()

Function Documentation

validParams< SwitchingFunction3PhaseMaterial >()

template<>

InputParameters validParams< SwitchingFunction3PhaseMaterial >

(

)

Definition at line 16 of file SwitchingFunction3PhaseMaterial.C.

{
  InputParameters params = validParams<DerivativeParsedMaterialHelper>();
  params.addClassDescription("Material for switching function that prevents formation of a third "
                             "phase at a two-phase interface: h_i = eta_i^2/4 * [15 (1-eta_i) [1 + "
                             "eta_i - (eta_k - eta_j)^2] + eta_i * (9eta_i^2 - 5)]");
  params.addRequiredCoupledVar("eta_i", "Order parameter i");
  params.addRequiredCoupledVar("eta_j", "Order parameter j");
  params.addRequiredCoupledVar("eta_k", "Order parameter k");
  params.addParam<bool>(
      "constrain_range",
      false,
      "Use a formulation that constrains the switching function values to [0:1]. This requires the "
      "Lagrange multiplier to constrain the sum of the switching function, rather than the etas.");
  return params;
}