#include "src/finite_elements/TriLinearFormsIntegrators.hpp"

Inheritance diagram for MoFEM::OpConvectiveTermLhsDuImpl< 1, 1, SPACE_DIM, GAUSS, OpBase >:

Collaboration diagram for MoFEM::OpConvectiveTermLhsDuImpl< 1, 1, SPACE_DIM, GAUSS, OpBase >:

Public Member Functions
	OpConvectiveTermLhsDuImpl (const std::string field_name_row, const std::string field_name_col, boost::shared_ptr< MatrixDouble > y_grad_ptr, ConstantFun alpha_fun=[]() { return 1;})

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 &row_data, EntitiesFieldData::EntData &col_data)
	Integrate grad-grad operator.

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

virtual MoFEMErrorCode	iNtegrate (EntData &data)
	Class dedicated to integrate operator.

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
boost::shared_ptr< MatrixDouble >	yGradPtr

ConstantFun	alphaConstant

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 SPACE_DIM, typename OpBase>
struct MoFEM::OpConvectiveTermLhsDuImpl< 1, 1, SPACE_DIM, GAUSS, OpBase >

Definition at line 20 of file TriLinearFormsIntegrators.hpp.

Constructor & Destructor Documentation

◆ OpConvectiveTermLhsDuImpl()

template<int SPACE_DIM, typename OpBase >

MoFEM::OpConvectiveTermLhsDuImpl< 1, 1, SPACE_DIM, GAUSS, OpBase >::OpConvectiveTermLhsDuImpl	(	const std::string	field_name_row,
		const std::string	field_name_col,
		boost::shared_ptr< MatrixDouble >	y_grad_ptr,
		ConstantFun	alpha_fun = `[]() { return 1; }`
	)

inline

Definition at line 22 of file TriLinearFormsIntegrators.hpp.

                                   { return 1; })
      : OpBase(field_name_row, field_name_col, OpBase::OPROWCOL),
        yGradPtr(y_grad_ptr), alphaConstant(alpha_fun) {
 
    this->assembleTranspose = false;
    this->onlyTranspose = false;
    this->sYmm = false;
  }

Member Function Documentation

◆ iNtegrate()

template<int SPACE_DIM, typename OpBase >

MoFEMErrorCode MoFEM::OpConvectiveTermLhsDuImpl< 1, 1, SPACE_DIM, GAUSS, OpBase >::iNtegrate	(	EntitiesFieldData::EntData &	row_data,
		EntitiesFieldData::EntData &	col_data
	)

protectedvirtual

Integrate grad-grad operator.

Parameters

row_data	row data (consist base functions on row entity)
col_data	column data (consist base functions on column entity)

Returns: error code

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

Definition at line 139 of file TriLinearFormsIntegrators.hpp.

                                        {
  MoFEMFunctionBegin;
 
  using DL = DataLayoutTraits<DataLayout::GaussByCoeffs>;
  auto get_grad_y_at_pts =
      MatrixSizeHelper<GetFTensor1FromMatType<SPACE_DIM, -1, DL>, DL>::get(
          *yGradPtr, OpBase::nbIntegrationPts);
 
  // get element volume
  const double vol = OpBase::getMeasure();
  // get integration weights
  auto t_w = OpBase::getFTensor0IntegrationWeight();
  // get base function gradient on rows
  auto t_row_base = row_data.getFTensor0N();
 
  auto get_t_vec = [&](const int rr) {
    std::array<double *, SPACE_DIM> ptrs;
    for (auto i = 0; i != SPACE_DIM; ++i)
      ptrs[i] = &OpBase::locMat(rr, i);
    return FTensor::Tensor1<FTensor::PackPtr<double *, SPACE_DIM>, SPACE_DIM>(
        ptrs);
  };
 
  auto t_grad_y_at_pts = get_grad_y_at_pts();
  FTensor::Index<'i', SPACE_DIM> i;
 
  const double alpha_constant = alphaConstant();
  // loop over integration points
  for (int gg = 0; gg != OpBase::nbIntegrationPts; gg++) {
    // take into account Jacobian
    const double alpha = t_w * vol * alpha_constant;
    // access local matrix
    auto t_vec = get_t_vec(0);
    // loop over rows base functions
    int rr = 0;
    for (; rr != OpBase::nbRows; rr++) {
      // get column base functions gradient at gauss point gg
      auto t_col_base = col_data.getFTensor0N(gg, 0);
      // loop over columns
      for (int cc = 0; cc != OpBase::nbCols / SPACE_DIM; cc++) {
        // calculate element of local matrix
        t_vec(i) += alpha * t_row_base * t_col_base * t_grad_y_at_pts(i);
        ++t_col_base;
        ++t_vec;
      }
      ++t_row_base;
    }
    for (; rr < OpBase::nbRowBaseFunctions; ++rr)
      ++t_row_base;
 
    ++t_grad_y_at_pts;
    ++t_w; // move to another integration weight
  }
  MoFEMFunctionReturn(0);
};