mfem::DGDiffusionIntegrator Class Reference

#include <bilininteg.hpp>

Inheritance diagram for mfem::DGDiffusionIntegrator:

Collaboration diagram for mfem::DGDiffusionIntegrator:

Public Member Functions
	DGDiffusionIntegrator (const double s, const double k)
	DGDiffusionIntegrator (Coefficient &q, const double s, const double k)
	DGDiffusionIntegrator (MatrixCoefficient &q, const double s, const double k)
virtual void	AssembleFaceMatrix (const FiniteElement &el1, const FiniteElement &el2, FaceElementTransformations &Trans, DenseMatrix &elmat)
Public Member Functions inherited from mfem::BilinearFormIntegrator
virtual void	AssembleElementMatrix (const FiniteElement &el, ElementTransformation &Trans, DenseMatrix &elmat)
	Given a particular Finite Element computes the element matrix elmat. More...
virtual void	AssembleElementMatrix2 (const FiniteElement &trial_fe, const FiniteElement &test_fe, ElementTransformation &Trans, DenseMatrix &elmat)
virtual void	AssembleFaceMatrix (const FiniteElement &trial_face_fe, const FiniteElement &test_fe1, const FiniteElement &test_fe2, FaceElementTransformations &Trans, DenseMatrix &elmat)
virtual void	AssembleElementVector (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun, Vector &elvect)
	Perform the local action of the BilinearFormIntegrator. More...
virtual void	AssembleElementGrad (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun, DenseMatrix &elmat)
	Assemble the local gradient matrix. More...
virtual void	ComputeElementFlux (const FiniteElement &el, ElementTransformation &Trans, Vector &u, const FiniteElement &fluxelem, Vector &flux, int wcoef=1)
virtual double	ComputeFluxEnergy (const FiniteElement &fluxelem, ElementTransformation &Trans, Vector &flux)
void	SetIntRule (const IntegrationRule *ir)
virtual	~BilinearFormIntegrator ()
Public Member Functions inherited from mfem::NonlinearFormIntegrator
virtual double	GetElementEnergy (const FiniteElement &el, ElementTransformation &Tr, const Vector &elfun)
	Compute the local energy. More...
virtual	~NonlinearFormIntegrator ()

Protected Attributes
Coefficient *	Q
MatrixCoefficient *	MQ
double	sigma
double	kappa
Vector	shape1
Vector	shape2
Vector	dshape1dn
Vector	dshape2dn
Vector	nor
Vector	nh
Vector	ni
DenseMatrix	jmat
DenseMatrix	dshape1
DenseMatrix	dshape2
DenseMatrix	mq
DenseMatrix	adjJ
Protected Attributes inherited from mfem::BilinearFormIntegrator
const IntegrationRule *	IntRule

Additional Inherited Members
Protected Member Functions inherited from mfem::BilinearFormIntegrator
	BilinearFormIntegrator (const IntegrationRule *ir=NULL)

Detailed Description

Integrator for the DG form:

• < {(Q grad(u)).n}, [v] > + sigma < [u], {(Q grad(v)).n} >
• kappa < {h^{-1} Q} [u], [v] >,

where Q is a scalar or matrix diffusion coefficient and u, v are the trial and test spaces, respectively. The parameters sigma and kappa determine the DG method to be used (when this integrator is added to the "broken" DiffusionIntegrator): sigma = -1, kappa >= kappa0: symm. interior penalty (IP or SIPG) method, sigma = +1, kappa > 0: non-symmetric interior penalty (NIPG) method, sigma = +1, kappa = 0: the method of Baumann and Oden.

Definition at line 607 of file bilininteg.hpp.

Constructor & Destructor Documentation

mfem::DGDiffusionIntegrator::DGDiffusionIntegrator ( const double  s, const double  k  )

inline

Definition at line 619 of file bilininteg.hpp.

mfem::DGDiffusionIntegrator::DGDiffusionIntegrator ( Coefficient &  q, const double  s, const double  k  )

inline

Definition at line 621 of file bilininteg.hpp.

mfem::DGDiffusionIntegrator::DGDiffusionIntegrator ( MatrixCoefficient &  q, const double  s, const double  k  )

inline

Definition at line 623 of file bilininteg.hpp.

Member Function Documentation

void mfem::DGDiffusionIntegrator::AssembleFaceMatrix ( const FiniteElement &  el1, const FiniteElement &  el2, FaceElementTransformations &  Trans, DenseMatrix &  elmat  )

virtual

Reimplemented from mfem::BilinearFormIntegrator.

Definition at line 1508 of file bilininteg.cpp.

Member Data Documentation

DenseMatrix mfem::DGDiffusionIntegrator::adjJ

protected

Definition at line 616 of file bilininteg.hpp.

DenseMatrix mfem::DGDiffusionIntegrator::dshape1

protected

Definition at line 616 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::dshape1dn

protected

Definition at line 615 of file bilininteg.hpp.

DenseMatrix mfem::DGDiffusionIntegrator::dshape2

protected

Definition at line 616 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::dshape2dn

protected

Definition at line 615 of file bilininteg.hpp.

DenseMatrix mfem::DGDiffusionIntegrator::jmat

protected

Definition at line 616 of file bilininteg.hpp.

double mfem::DGDiffusionIntegrator::kappa

protected

Definition at line 612 of file bilininteg.hpp.

MatrixCoefficient* mfem::DGDiffusionIntegrator::MQ

protected

Definition at line 611 of file bilininteg.hpp.

DenseMatrix mfem::DGDiffusionIntegrator::mq

protected

Definition at line 616 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::nh

protected

Definition at line 615 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::ni

protected

Definition at line 615 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::nor

protected

Definition at line 615 of file bilininteg.hpp.

Coefficient* mfem::DGDiffusionIntegrator::Q

protected

Definition at line 610 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::shape1

protected

Definition at line 615 of file bilininteg.hpp.

Vector mfem::DGDiffusionIntegrator::shape2

protected

Definition at line 615 of file bilininteg.hpp.

double mfem::DGDiffusionIntegrator::sigma

protected

Definition at line 612 of file bilininteg.hpp.

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The documentation for this class was generated from the following files:

• bilininteg.hpp
• bilininteg.cpp