heat_equation.cpp File Reference

#include <stdlib.h>
#include <cmath>
#include <MoFEM.hpp>

Go to the source code of this file.

Classes
struct	ElementsAndOps< DIM >
struct	Monitor
	[Push operators to pipeline] More...
struct	HeatEquation
struct	CalcJacobian

Typedefs
using	PostProcEle = PostProcBrokenMeshInMoab<DomainEle>
using	OpDomainMass
using	OpDomainGradGrad
using	OpDomainTimesScalarField
using	OpDomainGradTimesVec
using	OpDomainSource
using	OpBoundaryMass
using	OpBoundaryTimeScalarField
using	OpBoundarySource

Functions
int	main (int argc, char *argv[])

Variables
static char	help [] = "...\n\n"
constexpr int	SPACE_DIM = 2
	[Define dimension]
constexpr double	c = 1
constexpr double	k = 1
constexpr double	init_u = 0.

Typedef Documentation

OpBoundaryMass

using OpBoundaryMass

Initial value:

 FormsIntegrators<BoundaryEleOp>::Assembly<
    PETSC>::BiLinearForm<GAUSS>::OpMass<1, 1>

Examples

heat_equation.cpp.

Definition at line 48 of file heat_equation.cpp.

OpBoundarySource

using OpBoundarySource

Initial value:

 FormsIntegrators<BoundaryEleOp>::Assembly<
    PETSC>::LinearForm<GAUSS>::OpSource<1, 1>

Examples

heat_equation.cpp.

Definition at line 52 of file heat_equation.cpp.

OpBoundaryTimeScalarField

using OpBoundaryTimeScalarField

Initial value:

 FormsIntegrators<BoundaryEleOp>::Assembly<
    PETSC>::LinearForm<GAUSS>::OpBaseTimesScalar<1>

Examples

heat_equation.cpp.

Definition at line 50 of file heat_equation.cpp.

OpDomainGradGrad

using OpDomainGradGrad

Initial value:

 FormsIntegrators<DomainEleOp>::Assembly<
    PETSC>::BiLinearForm<GAUSS>::OpGradGrad<1, 1, SPACE_DIM>

Examples

heat_equation.cpp.

Definition at line 39 of file heat_equation.cpp.

OpDomainGradTimesVec

using OpDomainGradTimesVec

Initial value:

 FormsIntegrators<DomainEleOp>::Assembly<
    PETSC>::LinearForm<GAUSS>::OpGradTimesTensor<1, 1, SPACE_DIM>

Examples

heat_equation.cpp.

Definition at line 43 of file heat_equation.cpp.

OpDomainMass

using OpDomainMass

Initial value:

 FormsIntegrators<DomainEleOp>::Assembly<
    PETSC>::BiLinearForm<GAUSS>::OpMass<1, 1>

Examples

heat_equation.cpp.

Definition at line 37 of file heat_equation.cpp.

OpDomainSource

using OpDomainSource

Initial value:

 FormsIntegrators<DomainEleOp>::Assembly<
    PETSC>::LinearForm<GAUSS>::OpSource<1, 1>

Examples

heat_equation.cpp.

Definition at line 45 of file heat_equation.cpp.

OpDomainTimesScalarField

using OpDomainTimesScalarField

Initial value:

 FormsIntegrators<DomainEleOp>::Assembly<
    PETSC>::LinearForm<GAUSS>::OpBaseTimesScalar<1>

Examples

heat_equation.cpp.

Definition at line 41 of file heat_equation.cpp.

PostProcEle

using PostProcEle = PostProcBrokenMeshInMoab<DomainEle>

Definition at line 35 of file heat_equation.cpp.

Function Documentation

main()

int main	(	int	argc,
		char *	argv[] )

Definition at line 439 of file heat_equation.cpp.

                                 {
 
  // Initialisation of MoFEM/PETSc and MOAB data structures
  const char param_file[] = "param_file.petsc";
  MoFEM::Core::Initialize(&argc, &argv, param_file, help);
 
  // Add logging channel for example
  auto core_log = logging::core::get();
  core_log->add_sink(
      LogManager::createSink(LogManager::getStrmWorld(), "EXAMPLE"));
  LogManager::setLog("EXAMPLE");
  MOFEM_LOG_TAG("EXAMPLE", "example")
 
  // Error handling
  try {
    // Register MoFEM discrete manager in PETSc
    DMType dm_name = "DMMOFEM";
    CHKERR DMRegister_MoFEM(dm_name);
 
    // Create MOAB instance
    moab::Core mb_instance;              // mesh database
    moab::Interface &moab = mb_instance; // mesh database interface
 
    // Create MoFEM instance
    MoFEM::Core core(moab);           // finite element database
    MoFEM::Interface &m_field = core; // finite element interface
 
    // Run the main analysis
    HeatEquation heat_problem(m_field);
    CHKERR heat_problem.runProgram();
  }
  CATCH_ERRORS;
 
  // Finish work: cleaning memory, getting statistics, etc.
  MoFEM::Core::Finalize();
 
  return 0;
}

Variable Documentation

c

double c = 1

constexpr

Examples

heat_equation.cpp.

Definition at line 56 of file heat_equation.cpp.

help

char help[] = "...\n\n"

static

Definition at line 22 of file heat_equation.cpp.

init_u

double init_u = 0.

constexpr

Examples

heat_equation.cpp, and shallow_wave.cpp.

Definition at line 58 of file heat_equation.cpp.

k

double k = 1

constexpr

Examples

heat_equation.cpp.

Definition at line 57 of file heat_equation.cpp.

SPACE_DIM

int SPACE_DIM = 2

constexpr

[Define dimension]

Definition at line 27 of file heat_equation.cpp.