SplitCHMath Class Reference

The couple, SplitCHMath and SplitCHWRes, splits the CH equation by replacing chemical potential with 'w'. More...

#include <SplitCHMath.h>

Inheritance diagram for SplitCHMath:

Public Member Functions
	SplitCHMath (const InputParameters &parameters)

Protected Types
enum	PFFunctionType { Jacobian, Residual }

Protected Member Functions
virtual Real	computeDFDC (PFFunctionType type)
virtual Real	computeQpResidual ()
virtual Real	computeQpJacobian ()
virtual Real	computeQpOffDiagJacobian (unsigned int jvar)
virtual Real	computeDEDC (PFFunctionType type)

Protected Attributes
const MaterialProperty< Real > &	_kappa
unsigned int	_w_var
const VariableValue &	_w

Detailed Description

The couple, SplitCHMath and SplitCHWRes, splits the CH equation by replacing chemical potential with 'w'.

Definition at line 21 of file SplitCHMath.h.

Member Enumeration Documentation

PFFunctionType

enum SplitCHBase::PFFunctionType

protectedinherited

Enumerator
Jacobian
Residual

Definition at line 27 of file SplitCHBase.h.

  {
    Jacobian,
    Residual
  };

Constructor & Destructor Documentation

SplitCHMath()

SplitCHMath::SplitCHMath

(

const InputParameters &

parameters

)

Definition at line 24 of file SplitCHMath.C.

: SplitCHCRes(parameters) {}

Member Function Documentation

computeDEDC()

Real SplitCHBase::computeDEDC ( PFFunctionType  type )

protectedvirtualinherited

Definition at line 69 of file SplitCHBase.C.

{ return 0.0; }

Referenced by SplitCHBase::computeQpJacobian(), and SplitCHBase::computeQpResidual().

computeDFDC()

Real SplitCHMath::computeDFDC ( PFFunctionType  type )

protectedvirtual

Reimplemented from SplitCHBase.

Definition at line 27 of file SplitCHMath.C.

{
  switch (type)
  {
    case Residual:
      return _u[_qp] * _u[_qp] * _u[_qp] - _u[_qp]; // return Residual value
 
    case Jacobian:
      return (3.0 * _u[_qp] * _u[_qp] - 1.0) * _phi[_j][_qp]; // return Jacobian value
  }
 
  mooseError("Invalid type passed in");
}

computeQpJacobian()

Real SplitCHCRes::computeQpJacobian ( )

protectedvirtualinherited

Reimplemented from SplitCHBase.

Definition at line 60 of file SplitCHCRes.C.

{
  Real jacobian = SplitCHBase::computeQpJacobian(); //(df_prime_zero_dc+de_prime_dc)*_test[_i][_qp];
                                                    // from SplitCHBase
 
  jacobian += _kappa[_qp] * _grad_phi[_j][_qp] * _grad_test[_i][_qp];
 
  return jacobian;
}

computeQpOffDiagJacobian()

Real SplitCHCRes::computeQpOffDiagJacobian ( unsigned int  jvar )

protectedvirtualinherited

Reimplemented from SplitCHBase.

Definition at line 71 of file SplitCHCRes.C.

{
  if (jvar == _w_var)
  {
    return -_phi[_j][_qp] * _test[_i][_qp];
  }
 
  return 0.0;
}

Referenced by SplitCHParsed::computeQpOffDiagJacobian().

computeQpResidual()

Real SplitCHCRes::computeQpResidual ( )

protectedvirtualinherited

Reimplemented from SplitCHBase.

Definition at line 48 of file SplitCHCRes.C.

{
  Real residual =
      SplitCHBase::computeQpResidual(); //(f_prime_zero+e_prime)*_test[_i][_qp] from SplitCHBase
 
  residual += -_w[_qp] * _test[_i][_qp];
  residual += _kappa[_qp] * _grad_u[_qp] * _grad_test[_i][_qp];
 
  return residual;
}

Member Data Documentation

_kappa

const MaterialProperty<Real>& SplitCHCRes::_kappa

protectedinherited

Definition at line 31 of file SplitCHCRes.h.

Referenced by SplitCHCRes::computeQpJacobian(), and SplitCHCRes::computeQpResidual().

_w

const VariableValue& SplitCHCRes::_w

protectedinherited

Definition at line 33 of file SplitCHCRes.h.

Referenced by SplitCHCRes::computeQpResidual().

_w_var

unsigned int SplitCHCRes::_w_var

protectedinherited

Definition at line 32 of file SplitCHCRes.h.

Referenced by SplitCHCRes::computeQpOffDiagJacobian().

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

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