v0.14.0
Public Member Functions | Private Attributes | List of all members
NonlinearPoissonOps::OpDomainLhs Struct Reference

#include <tutorials/scl-4/src/nonlinear_poisson_2d.hpp>

Inheritance diagram for NonlinearPoissonOps::OpDomainLhs:
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Collaboration diagram for NonlinearPoissonOps::OpDomainLhs:
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Public Member Functions

 OpDomainLhs (std::string row_field_name, std::string col_field_name, boost::shared_ptr< VectorDouble > field_vec, boost::shared_ptr< MatrixDouble > field_grad_mat)
 
MoFEMErrorCode iNtegrate (EntData &row_data, EntData &col_data)
 Integrate grad-grad operator. More...
 
- 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)
 
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. More...
 
MoFEMErrorCode doWork (int row_side, EntityType row_type, EntData &row_data)
 Do calculations for the right hand side. More...
 

Private Attributes

boost::shared_ptr< VectorDouble > fieldVec
 
boost::shared_ptr< MatrixDouble > fieldGradMat
 

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 More...
 
FEFun feScalingFun
 assumes that time variable is set More...
 
boost::shared_ptr< RangeentsPtr
 Entities on which element is run. More...
 
- Static Public Attributes inherited from MoFEM::OpBaseImpl< A, EleOp >
static MatSetValuesHook matSetValuesHook
 
- Protected Member Functions inherited from MoFEM::OpBaseImpl< A, EleOp >
template<int DIM>
FTensor::Tensor1< FTensor::PackPtr< double *, DIM >, DIM > getNf ()
 
template<int DIM>
FTensor::Tensor2< FTensor::PackPtr< double *, DIM >, DIM, DIM > getLocMat (const int rr)
 
virtual MoFEMErrorCode aSsemble (EntData &row_data, EntData &col_data, const bool trans)
 
virtual MoFEMErrorCode iNtegrate (EntData &data)
 Class dedicated to integrate operator. More...
 
virtual MoFEMErrorCode aSsemble (EntData &data)
 
virtual size_t getNbOfBaseFunctions (EntitiesFieldData::EntData &data)
 Get number of base functions. More...
 
- Protected Attributes inherited from MoFEM::OpBaseImpl< A, EleOp >
int nbRows
 number of dofs on rows More...
 
int nbCols
 number if dof on column More...
 
int nbIntegrationPts
 number of integration points More...
 
int nbRowBaseFunctions
 number or row base functions More...
 
int rowSide
 row side number More...
 
int colSide
 column side number More...
 
EntityType rowType
 row type More...
 
EntityType colType
 column type More...
 
bool assembleTranspose
 
bool onlyTranspose
 
MatrixDouble locMat
 local entity block matrix More...
 
MatrixDouble locMatTranspose
 local entity block matrix More...
 
VectorDouble locF
 local entity vector More...
 

Detailed Description

Definition at line 39 of file nonlinear_poisson_2d.hpp.

Constructor & Destructor Documentation

◆ OpDomainLhs()

NonlinearPoissonOps::OpDomainLhs::OpDomainLhs ( std::string  row_field_name,
std::string  col_field_name,
boost::shared_ptr< VectorDouble >  field_vec,
boost::shared_ptr< MatrixDouble >  field_grad_mat 
)
inline

Definition at line 41 of file nonlinear_poisson_2d.hpp.

45  : AssemblyDomainEleOp(row_field_name, col_field_name,
46  DomainEleOp::OPROWCOL),
47  fieldVec(field_vec), fieldGradMat(field_grad_mat) {}

Member Function Documentation

◆ iNtegrate()

MoFEMErrorCode NonlinearPoissonOps::OpDomainLhs::iNtegrate ( EntData row_data,
EntData col_data 
)
inlinevirtual

Integrate grad-grad operator.

Parameters
row_datarow data (consist base functions on row entity)
col_datacolumn data (consist base functions on column entity)
Returns
error code

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

Definition at line 49 of file nonlinear_poisson_2d.hpp.

50  {
52 
53  auto &locLhs = AssemblyDomainEleOp::locMat;
54 
55  const int nb_row_dofs = row_data.getIndices().size();
56  const int nb_col_dofs = col_data.getIndices().size();
57  // get element area
58  const double area = getMeasure();
59 
60  // get number of integration points
61  const int nb_integration_points = getGaussPts().size2();
62  // get integration weights
63  auto t_w = getFTensor0IntegrationWeight();
64  // get solution (field value) at integration points
65  auto t_field = getFTensor0FromVec(*fieldVec);
66  // get gradient of field at integration points
67  auto t_field_grad = getFTensor1FromMat<2>(*fieldGradMat);
68 
69  // get base functions on row
70  auto t_row_base = row_data.getFTensor0N();
71  // get derivatives of base functions on row
72  auto t_row_diff_base = row_data.getFTensor1DiffN<2>();
73 
74  // START THE LOOP OVER INTEGRATION POINTS TO CALCULATE LOCAL MATRIX
75  for (int gg = 0; gg != nb_integration_points; gg++) {
76  const double a = t_w * area;
77 
78  for (int rr = 0; rr != nb_row_dofs; ++rr) {
79  // get base functions on column
80  auto t_col_base = col_data.getFTensor0N(gg, 0);
81  // get derivatives of base functions on column
82  auto t_col_diff_base = col_data.getFTensor1DiffN<2>(gg, 0);
83 
84  for (int cc = 0; cc != nb_col_dofs; cc++) {
85  locLhs(rr, cc) += (((1 + t_field * t_field) * t_row_diff_base(i) *
86  t_col_diff_base(i)) +
87  (2.0 * t_field * t_field_grad(i) *
88  t_row_diff_base(i) * t_col_base)) *
89  a;
90 
91  // move to the next base functions on column
92  ++t_col_base;
93  // move to the derivatives of the next base function on column
94  ++t_col_diff_base;
95  }
96 
97  // move to the next base function on row
98  ++t_row_base;
99  // move to the derivatives of the next base function on row
100  ++t_row_diff_base;
101  }
102 
103  // move to the weight of the next integration point
104  ++t_w;
105  // move to the solution (field value) at the next integration point
106  ++t_field;
107  // move to the gradient of field value at the next integration point
108  ++t_field_grad;
109  }
110 
112  }

Member Data Documentation

◆ fieldGradMat

boost::shared_ptr<MatrixDouble> NonlinearPoissonOps::OpDomainLhs::fieldGradMat
private

Definition at line 116 of file nonlinear_poisson_2d.hpp.

◆ fieldVec

boost::shared_ptr<VectorDouble> NonlinearPoissonOps::OpDomainLhs::fieldVec
private

Definition at line 115 of file nonlinear_poisson_2d.hpp.


The documentation for this struct was generated from the following file:
MoFEM::OpBaseImpl::locMat
MatrixDouble locMat
local entity block matrix
Definition: FormsIntegrators.hpp:249
MoFEM::EntitiesFieldData::EntData::getFTensor0N
FTensor::Tensor0< FTensor::PackPtr< double *, 1 > > getFTensor0N(const FieldApproximationBase base)
Get base function as Tensor0.
Definition: EntitiesFieldData.hpp:1502
a
constexpr double a
Definition: approx_sphere.cpp:30
MoFEM::getFTensor0FromVec
static auto getFTensor0FromVec(ublas::vector< T, A > &data)
Get tensor rank 0 (scalar) form data vector.
Definition: Templates.hpp:135
NonlinearPoissonOps::i
FTensor::Index< 'i', 2 > i
Definition: nonlinear_poisson_2d.hpp:33
MoFEM::EntitiesFieldData::EntData::getIndices
const VectorInt & getIndices() const
Get global indices of dofs on entity.
Definition: EntitiesFieldData.hpp:1214
NonlinearPoissonOps::OpDomainLhs::fieldVec
boost::shared_ptr< VectorDouble > fieldVec
Definition: nonlinear_poisson_2d.hpp:115
NonlinearPoissonOps::OpDomainLhs::fieldGradMat
boost::shared_ptr< MatrixDouble > fieldGradMat
Definition: nonlinear_poisson_2d.hpp:116
MoFEM::EntitiesFieldData::EntData::getFTensor1DiffN
FTensor::Tensor1< FTensor::PackPtr< double *, Tensor_Dim >, Tensor_Dim > getFTensor1DiffN(const FieldApproximationBase base)
Get derivatives of base functions.
Definition: EntitiesFieldData.cpp:526
MoFEMFunctionReturn
#define MoFEMFunctionReturn(a)
Last executable line of each PETSc function used for error handling. Replaces return()
Definition: definitions.h:429
AssemblyDomainEleOp
FormsIntegrators< DomainEleOp >::Assembly< PETSC >::OpBase AssemblyDomainEleOp
Definition: nonlinear_poisson_2d.hpp:24
MoFEMFunctionBegin
#define MoFEMFunctionBegin
First executable line of each MoFEM function, used for error handling. Final line of MoFEM functions ...
Definition: definitions.h:359