PorousFlowConstantBiotModulus Class Reference

Material designed to provide a time-invariant Biot Modulus, M, where 1 / M = (1 - alpha) * (alpha - phi) * C + phi / Kf . More...

#include <PorousFlowConstantBiotModulus.h>

Inheritance diagram for PorousFlowConstantBiotModulus:

Public Member Functions
	PorousFlowConstantBiotModulus (const InputParameters &parameters)

Protected Member Functions
virtual void	initQpStatefulProperties () override
virtual void	computeQpProperties () override

Protected Attributes
const Real	_biot_coefficient
	Biot coefficient. More...
const Real	_fluid_bulk_modulus
	Fluid bulk modulus. More...
const Real	_solid_bulk_compliance
	Solid bulk compliance. More...
const MaterialProperty< Real > &	_porosity
	porosity at the nodes or quadpoints. Only the initial value is ever used More...
MaterialProperty< Real > &	_biot_modulus
	Computed Biot modulus. More...
const MaterialProperty< Real > &	_biot_modulus_old
	Old value of Biot modulus. This variable is necessary in order to keep Biot modulus constant even if porosity is changing. More...
const unsigned int	_num_phases
	Number of phases. More...
const unsigned int	_num_components
	Number of fluid components. More...
const unsigned int	_num_var
	Number of PorousFlow variables. More...

Detailed Description

Material designed to provide a time-invariant Biot Modulus, M, where 1 / M = (1 - alpha) * (alpha - phi) * C + phi / Kf .

Here alpha = Biot coefficient (assumed constant) phi = initial value of porosity C = drained porous-solid bulk compliance (1 / bulk modulus) Kf = fluid bulk modulus (assumed constant)

Definition at line 29 of file PorousFlowConstantBiotModulus.h.

Constructor & Destructor Documentation

PorousFlowConstantBiotModulus()

PorousFlowConstantBiotModulus::PorousFlowConstantBiotModulus

(

const InputParameters &

parameters

)

Definition at line 36 of file PorousFlowConstantBiotModulus.C.

  : PorousFlowMaterialVectorBase(parameters),
    _biot_coefficient(getParam<Real>("biot_coefficient")),
    _fluid_bulk_modulus(getParam<Real>("fluid_bulk_modulus")),
    _solid_bulk_compliance(getParam<Real>("solid_bulk_compliance")),
    _porosity(_nodal_material ? getMaterialProperty<Real>("PorousFlow_porosity_nodal")
                              : getMaterialProperty<Real>("PorousFlow_porosity_qp")),
    _biot_modulus(_nodal_material ? declareProperty<Real>("PorousFlow_constant_biot_modulus_nodal")
                                  : declareProperty<Real>("PorousFlow_constant_biot_modulus_qp")),
    _biot_modulus_old(_nodal_material
                          ? getMaterialPropertyOld<Real>("PorousFlow_constant_biot_modulus_nodal")
                          : getMaterialPropertyOld<Real>("PorousFlow_constant_biot_modulus_qp"))
{
}

Member Function Documentation

computeQpProperties()

void PorousFlowConstantBiotModulus::computeQpProperties ( )

overrideprotectedvirtual

Definition at line 60 of file PorousFlowConstantBiotModulus.C.

{
  _biot_modulus[_qp] = _biot_modulus_old[_qp];
}

initQpStatefulProperties()

void PorousFlowConstantBiotModulus::initQpStatefulProperties ( )

overrideprotectedvirtual

Definition at line 52 of file PorousFlowConstantBiotModulus.C.

{
  _biot_modulus[_qp] = 1.0 / ((1.0 - _biot_coefficient) * (_biot_coefficient - _porosity[_qp]) *
                                  _solid_bulk_compliance +
                              _porosity[_qp] / _fluid_bulk_modulus);
}

Member Data Documentation

_biot_coefficient

const Real PorousFlowConstantBiotModulus::_biot_coefficient

protected

Biot coefficient.

Definition at line 39 of file PorousFlowConstantBiotModulus.h.

Referenced by initQpStatefulProperties().

_biot_modulus

MaterialProperty<Real>& PorousFlowConstantBiotModulus::_biot_modulus

protected

Computed Biot modulus.

Definition at line 51 of file PorousFlowConstantBiotModulus.h.

Referenced by computeQpProperties(), and initQpStatefulProperties().

_biot_modulus_old

const MaterialProperty<Real>& PorousFlowConstantBiotModulus::_biot_modulus_old

protected

Old value of Biot modulus. This variable is necessary in order to keep Biot modulus constant even if porosity is changing.

Definition at line 54 of file PorousFlowConstantBiotModulus.h.

Referenced by computeQpProperties().

_fluid_bulk_modulus

const Real PorousFlowConstantBiotModulus::_fluid_bulk_modulus

protected

Fluid bulk modulus.

Definition at line 42 of file PorousFlowConstantBiotModulus.h.

Referenced by initQpStatefulProperties().

_num_components

const unsigned int PorousFlowMaterialVectorBase::_num_components

protectedinherited

Number of fluid components.

Definition at line 33 of file PorousFlowMaterialVectorBase.h.

Referenced by PorousFlowDiffusivityBase::computeQpProperties(), PorousFlowMassFractionAqueousEquilibriumChemistry::computeQpProperties(), PorousFlowMassFraction::computeQpProperties(), PorousFlowAqueousPreDisChemistry::PorousFlowAqueousPreDisChemistry(), PorousFlowDiffusivityBase::PorousFlowDiffusivityBase(), and PorousFlowMassFraction::PorousFlowMassFraction().

_num_phases

const unsigned int PorousFlowMaterialVectorBase::_num_phases

protectedinherited

Number of phases.

Definition at line 30 of file PorousFlowMaterialVectorBase.h.

Referenced by PorousFlowDiffusivityBase::computeQpProperties(), PorousFlowDiffusivityMillingtonQuirk::computeQpProperties(), PorousFlowEffectiveFluidPressure::computeQpProperties(), PorousFlowMassFraction::computeQpProperties(), PorousFlowJoiner::computeQpProperties(), PorousFlowEffectiveFluidPressure::initQpStatefulProperties(), PorousFlowJoiner::initQpStatefulProperties(), PorousFlowDiffusivityBase::PorousFlowDiffusivityBase(), PorousFlowDiffusivityConst::PorousFlowDiffusivityConst(), PorousFlowJoiner::PorousFlowJoiner(), PorousFlowMassFraction::PorousFlowMassFraction(), PorousFlowThermalConductivityFromPorosity::PorousFlowThermalConductivityFromPorosity(), PorousFlowThermalConductivityIdeal::PorousFlowThermalConductivityIdeal(), and PorousFlowTotalGravitationalDensityFullySaturatedFromPorosity::PorousFlowTotalGravitationalDensityFullySaturatedFromPorosity().

_num_var

const unsigned int PorousFlowMaterialVectorBase::_num_var

protectedinherited

Number of PorousFlow variables.

Definition at line 36 of file PorousFlowMaterialVectorBase.h.

Referenced by PorousFlowDiffusivityBase::computeQpProperties(), PorousFlowPermeabilityConst::computeQpProperties(), PorousFlowVolumetricStrain::computeQpProperties(), PorousFlowDiffusivityMillingtonQuirk::computeQpProperties(), PorousFlowAqueousPreDisChemistry::computeQpProperties(), PorousFlowPorosityConst::computeQpProperties(), PorousFlowMassFractionAqueousEquilibriumChemistry::computeQpProperties(), PorousFlowThermalConductivityIdeal::computeQpProperties(), PorousFlowEffectiveFluidPressure::computeQpProperties(), PorousFlowPermeabilityTensorFromVar::computeQpProperties(), PorousFlowThermalConductivityFromPorosity::computeQpProperties(), PorousFlowMatrixInternalEnergy::computeQpProperties(), PorousFlowPorosityHMBiotModulus::computeQpProperties(), PorousFlowPermeabilityConstFromVar::computeQpProperties(), PorousFlowTotalGravitationalDensityFullySaturatedFromPorosity::computeQpProperties(), PorousFlowPermeabilityExponential::computeQpProperties(), PorousFlowPermeabilityKozenyCarman::computeQpProperties(), PorousFlowMassFraction::computeQpProperties(), PorousFlowJoiner::computeQpProperties(), PorousFlowPorosityExponentialBase::computeQpProperties(), and PorousFlowAqueousPreDisChemistry::initQpStatefulProperties().

_porosity

const MaterialProperty<Real>& PorousFlowConstantBiotModulus::_porosity

protected

porosity at the nodes or quadpoints. Only the initial value is ever used

Definition at line 48 of file PorousFlowConstantBiotModulus.h.

Referenced by initQpStatefulProperties().

_solid_bulk_compliance

const Real PorousFlowConstantBiotModulus::_solid_bulk_compliance

protected

Solid bulk compliance.

Definition at line 45 of file PorousFlowConstantBiotModulus.h.

Referenced by initQpStatefulProperties().

---

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

• porous_flow/include/materials/PorousFlowConstantBiotModulus.h
• porous_flow/src/materials/PorousFlowConstantBiotModulus.C