SplitCHWRes Class Reference

SplitCHWRes creates the residual for the chemical potential in the split form of the Cahn-Hilliard equation with a scalar (isotropic) mobility. More...

#include <SplitCHWRes.h>

Inheritance diagram for SplitCHWRes:

Public Member Functions
	SplitCHWRes (const InputParameters &parameters)

Protected Member Functions
virtual Real	computeQpResidual ()
virtual Real	computeQpJacobian ()
virtual Real	computeQpWJacobian ()
virtual Real	computeQpOffDiagJacobian (unsigned int jvar)

Protected Attributes
const MaterialPropertyName	_mob_name
const MaterialProperty< Real > &	_mob
const bool	_is_coupled
	is the kernel used in a coupled form? More...
unsigned int	_w_var
	int label for the chemical potential More...
const VariableGradient &	_grad_w
	Variable value for the chemical potential. More...
std::vector< const MaterialProperty< Real > * >	_dmobdarg
	derivatives of the mobility More...

Detailed Description

SplitCHWRes creates the residual for the chemical potential in the split form of the Cahn-Hilliard equation with a scalar (isotropic) mobility.

Definition at line 19 of file SplitCHWRes.h.

Constructor & Destructor Documentation

SplitCHWRes()

SplitCHWRes::SplitCHWRes

(

const InputParameters &

parameters

)

Definition at line 24 of file SplitCHWRes.C.

: SplitCHWResBase<Real>(parameters) {}

Member Function Documentation

computeQpJacobian()

Real SplitCHWResBase< Real >::computeQpJacobian ( )

protectedvirtualinherited

Definition at line 86 of file SplitCHWResBase.h.

{
  return (_is_coupled && _w_var != _var.number()) ? 0.0 : computeQpWJacobian();
}

computeQpOffDiagJacobian()

Real SplitCHWResBase< Real >::computeQpOffDiagJacobian ( unsigned int  jvar )

protectedvirtualinherited

Definition at line 100 of file SplitCHWResBase.h.

{
  // c Off-Diagonal Jacobian
  if (_w_var == jvar)
    return computeQpWJacobian();
 
  // get the coupled variable jvar is referring to
  const unsigned int cvar = mapJvarToCvar(jvar);
 
  return (*_dmobdarg[cvar])[_qp] * _phi[_j][_qp] * _grad_w[_qp] * _grad_test[_i][_qp];
}

computeQpResidual()

Real SplitCHWResBase< Real >::computeQpResidual ( )

protectedvirtualinherited

Definition at line 79 of file SplitCHWResBase.h.

{
  return _mob[_qp] * _grad_w[_qp] * _grad_test[_i][_qp];
}

computeQpWJacobian()

Real SplitCHWResBase< Real >::computeQpWJacobian ( )

protectedvirtualinherited

Definition at line 93 of file SplitCHWResBase.h.

{
  return _mob[_qp] * _grad_phi[_j][_qp] * _grad_test[_i][_qp];
}

Member Data Documentation

_dmobdarg

std::vector<const MaterialProperty<Real > *> SplitCHWResBase< Real >::_dmobdarg

protectedinherited

derivatives of the mobility

Definition at line 54 of file SplitCHWResBase.h.

_grad_w

const VariableGradient& SplitCHWResBase< Real >::_grad_w

protectedinherited

Variable value for the chemical potential.

Definition at line 51 of file SplitCHWResBase.h.

_is_coupled

const bool SplitCHWResBase< Real >::_is_coupled

protectedinherited

is the kernel used in a coupled form?

Definition at line 45 of file SplitCHWResBase.h.

_mob

const MaterialProperty<Real >& SplitCHWResBase< Real >::_mob

protectedinherited

Definition at line 42 of file SplitCHWResBase.h.

_mob_name

const MaterialPropertyName SplitCHWResBase< Real >::_mob_name

protectedinherited

Definition at line 41 of file SplitCHWResBase.h.

_w_var

unsigned int SplitCHWResBase< Real >::_w_var

protectedinherited

int label for the chemical potential

Definition at line 48 of file SplitCHWResBase.h.

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The documentation for this class was generated from the following files:

• phase_field/include/kernels/SplitCHWRes.h
• phase_field/src/kernels/SplitCHWRes.C