Detailed Description

The DirichletBoundaryCondition class describes a constant in space and time Dirichlet boundary condition. The expected parameter in the passed configuration is "value" which, when not present defaults to zero.

Definition at line 34 of file DirichletBoundaryCondition.h.

#include <DirichletBoundaryCondition.h>

Inheritance diagram for ProcessLib::DirichletBoundaryCondition:

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Collaboration diagram for ProcessLib::DirichletBoundaryCondition:

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Public Member Functions
	DirichletBoundaryCondition (ParameterLib::Parameter< double > const &parameter, MeshLib::Mesh const &bc_mesh, NumLib::LocalToGlobalIndexMap const &dof_table_bulk, int const variable_id, int const component_id)

void	getEssentialBCValues (const double t, GlobalVector const &x, NumLib::IndexValueVector< GlobalIndexType > &bc_values) const override
	Writes the values of essential BCs to `bc_values`.

Public Member Functions inherited from ProcessLib::BoundaryCondition
virtual void	applyNaturalBC (const double, std::vector< GlobalVector * > const &, int const, GlobalMatrix , GlobalVector &, GlobalMatrix )

virtual void	preTimestep (const double, std::vector< GlobalVector * > const &, int const)

virtual void	postTimestep (const double, std::vector< GlobalVector * > const &, int const)

virtual	~BoundaryCondition ()=default

Private Attributes
ParameterLib::Parameter< double > const &	_parameter

MeshLib::Mesh const &	_bc_mesh

std::unique_ptr< NumLib::LocalToGlobalIndexMap const >	_dof_table_boundary

int const	_variable_id

int const	_component_id

Constructor & Destructor Documentation

◆ DirichletBoundaryCondition()

ProcessLib::DirichletBoundaryCondition::DirichletBoundaryCondition	(	ParameterLib::Parameter< double > const &	parameter,
		MeshLib::Mesh const &	bc_mesh,
		NumLib::LocalToGlobalIndexMap const &	dof_table_bulk,
		int const	variable_id,
		int const	component_id )

Definition at line 26 of file DirichletBoundaryCondition.cpp.

    : _parameter(parameter),
      _bc_mesh(bc_mesh),
      _variable_id(variable_id),
      _component_id(component_id)
{
    checkParametersOfDirichletBoundaryCondition(_bc_mesh, dof_table_bulk,
                                                _variable_id, _component_id);
 
    std::vector<MeshLib::Node*> const& bc_nodes = bc_mesh.getNodes();
    MeshLib::MeshSubset bc_mesh_subset(_bc_mesh, bc_nodes);
 
    // Create local DOF table from the BC mesh subset for the given variable
    // and component id.
    _dof_table_boundary = dof_table_bulk.deriveBoundaryConstrainedMap(
        variable_id, {component_id}, std::move(bc_mesh_subset));
}

References _bc_mesh, _component_id, _dof_table_boundary, _variable_id, ProcessLib::checkParametersOfDirichletBoundaryCondition(), NumLib::LocalToGlobalIndexMap::deriveBoundaryConstrainedMap(), and MeshLib::Mesh::getNodes().

Member Function Documentation

◆ getEssentialBCValues()

void ProcessLib::DirichletBoundaryCondition::getEssentialBCValues	(	const double	,
		GlobalVector const &	,
		NumLib::IndexValueVector< GlobalIndexType > &	) const

overridevirtual

Writes the values of essential BCs to bc_values.

Reimplemented from ProcessLib::BoundaryCondition.

Definition at line 48 of file DirichletBoundaryCondition.cpp.

{
    getEssentialBCValuesLocal(_parameter, _bc_mesh, *_dof_table_boundary,
                              _variable_id, _component_id, t, x, bc_values);
}