#include "src/finite_elements/LinearFormsIntegratorsImpl.hpp"

Inheritance diagram for MoFEM::OpMixDivTimesUImpl< 1, FIELD_DIM, FIELD_DIM, GAUSS, OpBase, CoordSys >:

Collaboration diagram for MoFEM::OpMixDivTimesUImpl< 1, FIELD_DIM, FIELD_DIM, GAUSS, OpBase, CoordSys >:

Public Member Functions
	OpMixDivTimesUImpl (const std::string field_name, boost::shared_ptr< VectorDouble > vec, ScalarFun beta=[](double, double, double) constexpr { return 1;}, boost::shared_ptr< Range > ents_ptr=nullptr)

Public Member Functions inherited from MoFEM::OpBaseImpl< A, EleOp >
	OpBaseImpl (const std::string row_field_name, const std::string col_field_name, const OpType type, boost::shared_ptr< Range > ents_ptr=nullptr)
	Constructor for base operator implementation.

MoFEMErrorCode	doWork (int row_side, int col_side, EntityType row_type, EntityType col_type, EntData &row_data, EntData &col_data)
	Do calculations for the left hand side.

MoFEMErrorCode	doWork (int row_side, EntityType row_type, EntData &row_data)
	Do calculations for the right hand side.

Protected Member Functions
MoFEMErrorCode	iNtegrate (EntitiesFieldData::EntData &data)
	div U times vector

Protected Member Functions inherited from MoFEM::OpBaseImpl< A, EleOp >
template<int DIM>
auto	getNf ()
	Get local vector tensor for assembly.

template<int DIM>
FTensor::Tensor2< FTensor::PackPtr< double *, DIM >, DIM, DIM >	getLocMat (const int rr)
	Get local matrix tensor for assembly.

virtual MoFEMErrorCode	iNtegrate (EntData &, EntData &)
	Integrate grad-grad operator.

virtual MoFEMErrorCode	aSsemble (EntData &row_data, EntData &col_data, const bool trans)
	Assemble local matrix into global matrix.

virtual MoFEMErrorCode	aSsemble (EntData &data)
	Assemble local vector into global vector.

virtual size_t	getNbOfBaseFunctions (EntitiesFieldData::EntData &data)
	Get number of base functions.

Protected Attributes
ScalarFun	betaCoeff

boost::shared_ptr< VectorDouble >	sourceVec

Protected Attributes inherited from MoFEM::OpBaseImpl< A, EleOp >
int	nbRows
	number of dofs on rows

int	nbCols
	number if dof on column

int	nbIntegrationPts
	number of integration points

int	nbRowBaseFunctions
	number or row base functions

int	rowSide
	row side number

int	colSide
	column side number

EntityType	rowType
	row type

EntityType	colType
	column type

bool	assembleTranspose

bool	onlyTranspose

MatrixDouble	locMat
	local entity block matrix

MatrixDouble	locMatTranspose
	local entity block matrix

VectorDouble	locF
	local entity vector

Additional Inherited Members
Public Types inherited from MoFEM::OpBaseImpl< A, EleOp >
using	OpType = typename EleOp::OpType

using	EntData = EntitiesFieldData::EntData

using	MatSetValuesHook = boost::function< MoFEMErrorCode(ForcesAndSourcesCore::UserDataOperator *op_ptr, const EntitiesFieldData::EntData &row_data, const EntitiesFieldData::EntData &col_data, MatrixDouble &m)>

Public Attributes inherited from MoFEM::OpBaseImpl< A, EleOp >
TimeFun	timeScalingFun
	assumes that time variable is set

FEFun	feScalingFun
	set by fe entity handle

boost::shared_ptr< Range >	entsPtr
	Entities on which element is run.

Static Public Attributes inherited from MoFEM::OpBaseImpl< A, EleOp >
static MatSetValuesHook	matSetValuesHook

Detailed Description

template<int FIELD_DIM, typename OpBase, CoordinateTypes CoordSys>
struct MoFEM::OpMixDivTimesUImpl< 1, FIELD_DIM, FIELD_DIM, GAUSS, OpBase, CoordSys >

Definition at line 289 of file LinearFormsIntegratorsImpl.hpp.

Constructor & Destructor Documentation

◆ OpMixDivTimesUImpl()

template<int FIELD_DIM, typename OpBase , CoordinateTypes CoordSys>

MoFEM::OpMixDivTimesUImpl< 1, FIELD_DIM, FIELD_DIM, GAUSS, OpBase, CoordSys >::OpMixDivTimesUImpl	(	const std::string	field_name,
		boost::shared_ptr< VectorDouble >	vec,
		ScalarFun	beta = `[](double, double, double) constexpr { return 1; }`,
		boost::shared_ptr< Range >	ents_ptr = `nullptr`
	)

inline

Definition at line 292 of file LinearFormsIntegratorsImpl.hpp.

                                                            { return 1; },
      boost::shared_ptr<Range> ents_ptr = nullptr)
      : OpBase(field_name, field_name, OpBase::OPROW, ents_ptr), sourceVec(vec),
        betaCoeff(beta) {}

Member Function Documentation

◆ iNtegrate()

template<int FIELD_DIM, typename OpBase , CoordinateTypes CoordSys>

MoFEMErrorCode MoFEM::OpMixDivTimesUImpl< 1, FIELD_DIM, FIELD_DIM, GAUSS, OpBase, CoordSys >::iNtegrate ( EntitiesFieldData::EntData & row_data )

protectedvirtual

div U times vector

\[ \delta u_j = \phi^m\delta\overline{u}^m_j\\ \delta u_{j,i} = \phi^m_{,i}\delta\overline{u}^m_j\\ \textrm{tr}[\delta u_{j,i}] = \delta u_{j,i}\delta_{ji}\\ (\textrm{tr}[\delta u_{j,i}], v) =\\ (\delta u_{j,i} \delta_{ij}, v) =\\ (\delta u_{j,i}, \delta_{ij} v) =\\ (\phi^m_{,i}\delta\overline{u}^m_j, \delta_{ij} v) \\ f_i^m=(\phi^m_{,i}, v) \]

Template Parameters

FIELD_DIM
SPACE_DIM
OpBase

Parameters

row_data

Returns: MoFEMErrorCode

Reimplemented from MoFEM::OpBaseImpl< A, EleOp >.

Definition at line 975 of file LinearFormsIntegratorsImpl.hpp.

                                        {
  FTensor::Index<'i', FIELD_DIM> i;
  MoFEMFunctionBegin;
 
  // get element volume
  const double vol = OpBase::getMeasure();
  // get integration weights
  auto t_w = OpBase::getFTensor0IntegrationWeight();
  // get coordinate at integration points
  auto t_coords = OpBase::getFTensor1CoordsAtGaussPts();
  // get base function gradient on rows
  auto t_row_grad = row_data.getFTensor1DiffN<FIELD_DIM>();
  // get vector values
  auto t_vec = getFTensor0FromVec(*sourceVec);
  // loop over integration points
  for (int gg = 0; gg != OpBase::nbIntegrationPts; gg++) {
    // take into account Jacobian
    const double alpha =
        t_w * vol * betaCoeff(t_coords(0), t_coords(1), t_coords(2));
    auto t_nf = getFTensor1FromArray<FIELD_DIM, FIELD_DIM>(OpBase::locF);
    // loop over rows base functions
    int rr = 0;
    for (; rr != OpBase::nbRows / FIELD_DIM; ++rr) {
      t_nf(i) += alpha * t_row_grad(i) * t_vec;
      ++t_row_grad;
      ++t_nf;
    }
    for (; rr < OpBase::nbRowBaseFunctions; ++rr)
      ++t_row_grad;
    ++t_w; // move to another integration weight
    ++t_vec;
    ++t_coords;
  }
  MoFEMFunctionReturn(0);
}