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Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
PoissonExample::Op_g Struct Reference

Assemble constrains vector. More...

#include <users_modules/tutorials/cor-2to5/src/PoissonOperators.hpp>

Inheritance diagram for PoissonExample::Op_g:
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Collaboration diagram for PoissonExample::Op_g:
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Public Types

typedef boost::function< double(const double, const double, const double)> FVal
 

Public Member Functions

 Op_g (FVal f_value, const string field_name="L", const double beta=1)
 
- Public Member Functions inherited from PoissonExample::OpBaseRhs< FaceElementForcesAndSourcesCore::UserDataOperator >
 OpBaseRhs (const std::string field_name)
 
MoFEMErrorCode doWork (int row_side, EntityType row_type, EntitiesFieldData::EntData &row_data)
 This function is called by finite element. More...
 
virtual MoFEMErrorCode iNtegrate (EntitiesFieldData::EntData &data)=0
 Class dedicated to integrate operator. More...
 
virtual MoFEMErrorCode aSsemble (EntitiesFieldData::EntData &data)=0
 Class dedicated to assemble operator to global system vector. More...
 

Protected Member Functions

MoFEMErrorCode iNtegrate (EntitiesFieldData::EntData &data)
 Integrate local constrains vector. More...
 
MoFEMErrorCode aSsemble (EntitiesFieldData::EntData &data)
 assemble constrains vectors More...
 

Protected Attributes

FTensor::Number< 0 > NX
 x-direction index More...
 
FTensor::Number< 1 > NY
 y-direction index More...
 
FTensor::Number< 2 > NZ
 z-direction index More...
 
FVal fValue
 Function pointer evaluating values of "U" at the boundary. More...
 
VectorDouble locVec
 
const double bEta
 
- Protected Attributes inherited from PoissonExample::OpBaseRhs< FaceElementForcesAndSourcesCore::UserDataOperator >
int nbRows
 < error code More...
 
int nbIntegrationPts
 number of integration points More...
 

Detailed Description

Assemble constrains vector.

\[ \mathbf{g} = \int_{\partial\Omega} \boldsymbol\psi \overline{u} \textrm{d}\partial\Omega \]

Examples
analytical_poisson_field_split.cpp.

Definition at line 416 of file PoissonOperators.hpp.

Member Typedef Documentation

◆ FVal

typedef boost::function<double(const double, const double, const double)> PoissonExample::Op_g::FVal
Examples
PoissonOperators.hpp.

Definition at line 420 of file PoissonOperators.hpp.

Constructor & Destructor Documentation

◆ Op_g()

PoissonExample::Op_g::Op_g ( FVal  f_value,
const string  field_name = "L",
const double  beta = 1 
)
inline

Definition at line 422 of file PoissonOperators.hpp.

423 : OpBaseRhs<FaceElementForcesAndSourcesCore::UserDataOperator>(
424 field_name),
425 fValue(f_value), bEta(beta) {}
constexpr auto field_name
FVal fValue
Function pointer evaluating values of "U" at the boundary.

Member Function Documentation

◆ aSsemble()

MoFEMErrorCode PoissonExample::Op_g::aSsemble ( EntitiesFieldData::EntData &  data)
inlineprotectedvirtual

assemble constrains vectors

Implements PoissonExample::OpBaseRhs< FaceElementForcesAndSourcesCore::UserDataOperator >.

Examples
PoissonOperators.hpp.

Definition at line 477 of file PoissonOperators.hpp.

477 {
479 const int *indices = &*data.getIndices().data().begin();
480 const double *vals = &*locVec.data().begin();
481 Vec f = getFEMethod()->ksp_f != PETSC_NULL ? getFEMethod()->ksp_f
482 : getFEMethod()->snes_f;
483 CHKERR VecSetValues(f, nbRows, indices, &*vals, ADD_VALUES);
485 }
#define MoFEMFunctionBegin
First executable line of each MoFEM function, used for error handling. Final line of MoFEM functions ...
Definition: definitions.h:346
#define MoFEMFunctionReturn(a)
Last executable line of each PETSc function used for error handling. Replaces return()
Definition: definitions.h:416
#define CHKERR
Inline error check.
Definition: definitions.h:535
const FTensor::Tensor2< T, Dim, Dim > Vec
auto f
Definition: HenckyOps.hpp:5

◆ iNtegrate()

MoFEMErrorCode PoissonExample::Op_g::iNtegrate ( EntitiesFieldData::EntData &  data)
inlineprotectedvirtual

Integrate local constrains vector.

Implements PoissonExample::OpBaseRhs< FaceElementForcesAndSourcesCore::UserDataOperator >.

Reimplemented in PoissonExample::OpRes_g, and PoissonExample::OpResF_Boundary.

Examples
PoissonOperators.hpp.

Definition at line 439 of file PoissonOperators.hpp.

439 {
441 // set size to local vector
442 locVec.resize(nbRows, false);
443 // clear local vector
444 locVec.clear();
445 // get face area
446 const double area = getArea() * bEta;
447 // get integration weight
448 auto t_w = getFTensor0IntegrationWeight();
449 // get base function
450 auto t_l = data.getFTensor0N();
451 // get coordinates at integration point
452 auto t_coords = getFTensor1CoordsAtGaussPts();
453 // make loop over integration points
454 for (int gg = 0; gg != nbIntegrationPts; gg++) {
455 // evaluate function on boundary and scale it by area and integration
456 // weight
457 double alpha =
458 area * t_w * fValue(t_coords(NX), t_coords(NY), t_coords(NZ));
459 // get element of vector
461 &*locVec.data().begin());
462 //
463 for (int rr = 0; rr != nbRows; rr++) {
464 t_a += alpha * t_l;
465 ++t_a;
466 ++t_l;
467 }
468 ++t_w;
469 ++t_coords;
470 }
472 }
FTensor::Number< 2 > NZ
z-direction index
FTensor::Number< 0 > NX
x-direction index
FTensor::Number< 1 > NY
y-direction index

Member Data Documentation

◆ bEta

const double PoissonExample::Op_g::bEta
protected
Examples
PoissonOperators.hpp.

Definition at line 434 of file PoissonOperators.hpp.

◆ fValue

FVal PoissonExample::Op_g::fValue
protected

Function pointer evaluating values of "U" at the boundary.

Examples
PoissonOperators.hpp.

Definition at line 431 of file PoissonOperators.hpp.

◆ locVec

VectorDouble PoissonExample::Op_g::locVec
protected
Examples
PoissonOperators.hpp.

Definition at line 433 of file PoissonOperators.hpp.

◆ NX

FTensor::Number<0> PoissonExample::Op_g::NX
protected

x-direction index

Examples
PoissonOperators.hpp.

Definition at line 428 of file PoissonOperators.hpp.

◆ NY

FTensor::Number<1> PoissonExample::Op_g::NY
protected

y-direction index

Examples
PoissonOperators.hpp.

Definition at line 429 of file PoissonOperators.hpp.

◆ NZ

FTensor::Number<2> PoissonExample::Op_g::NZ
protected

z-direction index

Examples
PoissonOperators.hpp.

Definition at line 430 of file PoissonOperators.hpp.


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