Calculation of (linear) elasticity model terms for the residual. More...

#include <elasticitylocalresidualtpsa.hpp>

Static Public Member Functions
template<class LhsEval>
static void	computeVolumeTerm (Dune::FieldVector< LhsEval, numEq > &volTerm, const MaterialState &materialState, const Problem &problem, const unsigned globalIndex)
	Calculate volume terms in TPSA formulation.
static void	computeFaceTerm (Dune::FieldVector< Evaluation, numEq > &faceTerm, const MaterialState &materialStateIn, const MaterialState &materialStateEx, Problem &problem, const unsigned globalIndexIn, const unsigned globalIndexEx)
	Calculate terms across cell faces in TPSA formulation.
template<class BoundaryConditionData>
static void	computeBoundaryTerm (Dune::FieldVector< Evaluation, numEq > &bndryTerm, const MaterialState &materialState, const BoundaryConditionData &bdyInfo, Problem &problem, unsigned globalIndex)
	Calculate boundary conditions in TPSA formulation given by BCCON/BCPROP.
template<class BoundaryConditionData>
static void	computeBoundaryTermFixed (Dune::FieldVector< Evaluation, numEq > &bndryTerm, const MaterialState &materialState, const BoundaryConditionData &bdyInfo, Problem &problem, unsigned globalIndex)
	Calculate fixed displacement boundary condition in TPSA formulation.
template<class BoundaryConditionData>
static void	computeBoundaryTermFree (Dune::FieldVector< Evaluation, numEq > &bndryTerm, const MaterialState &materialState, const BoundaryConditionData &bdyInfo, Problem &problem, unsigned globalIndex)
	Calculate free (or zero traction) boundary condition in TPSA formulation.
static void	computeSourceTerm (Dune::FieldVector< Evaluation, numEq > &sourceTerm, Problem &problem, unsigned globalSpaceIdex, unsigned timeIdx)
	Calculate source term in TPSA formulation.

Detailed Description

template<class TypeTag>
class Opm::ElasticityLocalResidual< TypeTag >

Calculation of (linear) elasticity model terms for the residual.

The linearized Biot model is solved where it is assumed that solid mechanics are governed by Hooke's law and conservation of linear momentum:

$\begin{eqnarray*} \sigma &=& 2\mu\epsilon(u) + \lambda(\nabla\cdot u)I, -\nabla\cdot(\sigma - \alpha(p_f - p_0)I) &=& f_u, \end{eqnarray*}$

where \f&\sigma\f& is Cauchy stress tensor, \f&u\f& is displacement, \f&\epsilon(\cdot)\f& is thesymmetric gradient, \f&\mu\f& and \f&\lambda\f& are Lame's first (aka shear modulus) and second parameters, \f&\alpha\f& is the Biot-Willis parameter, \f&(p_f-p_0)\f& is fluid pressure difference wrt hydrostatic, and \f&f_u\f& are body forces.

The equations are discretized using two-point stress approximation following Boon et al. (2025), Solving Biot poroelasticity by coupling OPM Flow with the two-point stress approximation finite volume method, arXiv:2510.23432v1.

The resulting equations contain a volume term where only single-cell variables are used; face terms where variables across cell faces are calculated; boundary terms, similar to face terms, but cell faces are at the boundary; and source terms where coupling and potential body forces are calculated.

Member Function Documentation

◆ computeBoundaryTerm()

template<class TypeTag>

template<class BoundaryConditionData>

void Opm::ElasticityLocalResidual< TypeTag >::computeBoundaryTerm	(	Dune::FieldVector< Evaluation, numEq > &	bndryTerm,
		const MaterialState &	materialState,
		const BoundaryConditionData &	bdyInfo,
		Problem &	problem,
		unsigned	globalIndex )

inlinestatic

Calculate boundary conditions in TPSA formulation given by BCCON/BCPROP.

Parameters

bndryTerm	Boundary term vector
materialState	Material state container
bdyInfo	Boundary condition info container
problem	Flow problem
globalIndex	Cell index

◆ computeBoundaryTermFixed()

template<class TypeTag>

template<class BoundaryConditionData>

void Opm::ElasticityLocalResidual< TypeTag >::computeBoundaryTermFixed	(	Dune::FieldVector< Evaluation, numEq > &	bndryTerm,
		const MaterialState &	materialState,
		const BoundaryConditionData &	bdyInfo,
		Problem &	problem,
		unsigned	globalIndex )

inlinestatic

Calculate fixed displacement boundary condition in TPSA formulation.

Parameters

bndryTerm	Boundary term vector
materialState	Material state container
bdyInfo	Boundary condition info container
problem	Flow problem
globalIndex	Cell index

Note: BCMECHType::NONE is a implemented as a specialization of BCMECHType::FIXED with displacement equal to zero on the boundary face

◆ computeBoundaryTermFree()

template<class TypeTag>

template<class BoundaryConditionData>

void Opm::ElasticityLocalResidual< TypeTag >::computeBoundaryTermFree	(	Dune::FieldVector< Evaluation, numEq > &	bndryTerm,
		const MaterialState &	materialState,
		const BoundaryConditionData &	bdyInfo,
		Problem &	problem,
		unsigned	globalIndex )

inlinestatic

Calculate free (or zero traction) boundary condition in TPSA formulation.

Parameters

bndryTerm	Boundary term vector
materialState	Material state container
bdyInfo	Boundary condition info container
problem	Flow problem
globalIndex	Cell index

Note: Free, or zero traction, BC is equivalent of having a spring at infinity where we have assumed all (primary) variables and parameters (e.g., shear modulus) are zero.

◆ computeFaceTerm()

template<class TypeTag>

void Opm::ElasticityLocalResidual< TypeTag >::computeFaceTerm	(	Dune::FieldVector< Evaluation, numEq > &	faceTerm,
		const MaterialState &	materialStateIn,
		const MaterialState &	materialStateEx,
		Problem &	problem,
		const unsigned	globalIndexIn,
		const unsigned	globalIndexEx )

inlinestatic

Calculate terms across cell faces in TPSA formulation.

Parameters

faceTerm	Face term vector
materialStateIn	Material state container of inside cell
materialStateEx	Material state container of outside cel
problem	Flow problem
globalIndexIn	Inside cell index
globalIndexEx	Outside cell index

Material state, problem input and global index here might/should be merged in "IntensiveQuantity" and "NeighborInfo" containers as in BlackOilLocalResidualTPFA

◆ computeSourceTerm()

template<class TypeTag>

void Opm::ElasticityLocalResidual< TypeTag >::computeSourceTerm	(	Dune::FieldVector< Evaluation, numEq > &	sourceTerm,
		Problem &	problem,
		unsigned	globalSpaceIdex,
		unsigned	timeIdx )

inlinestatic

Calculate source term in TPSA formulation.

Parameters

sourceTerm	Source term vector
problem	Flow problem
globalSpaceIdex	Cell index
timeIdx	Time index

◆ computeVolumeTerm()

template<class TypeTag>

template<class LhsEval>

void Opm::ElasticityLocalResidual< TypeTag >::computeVolumeTerm	(	Dune::FieldVector< LhsEval, numEq > &	volTerm,
		const MaterialState &	materialState,
		const Problem &	problem,
		const unsigned	globalIndex )

inlinestatic

Calculate volume terms in TPSA formulation.

Parameters

volTerm	Volume term vector
materialState	Material state container
problem	Flow problem
globalIndex	Cell index

Material state, problem input and global index here might/should be merged in an "IntensiveQuantity" container as in BlackOilLocalResidualTPFA

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

opm/models/tpsa/elasticitylocalresidualtpsa.hpp

Static Public Member Functions

Detailed Description

Member Function Documentation

◆ computeBoundaryTerm()

◆ computeBoundaryTermFixed()

◆ computeBoundaryTermFree()

◆ computeFaceTerm()

◆ computeSourceTerm()

◆ computeVolumeTerm()