Dune::PDELab::ConvectionDiffusionCCFV< TP > Class Template Reference

#include <dune/pdelab/localoperator/convectiondiffusionccfv.hh>

Public Types
Flags for the sparsity pattern
enum
	Whether to assemble the pattern on the elements, i.e. whether or not pattern_volume() should be called.
enum
	Whether to assemble the pattern on the elements after the skeleton has been handled, i.e. whether or not pattern_volume_post_skeleton() should be called.
enum
	Whether to assemble the pattern on the interior intersections, i.e. whether or not pattern_skeleton() should be called.
enum
	Whether to assemble the pattern on the boundary intersections, i.e. whether or not pattern_boundary() should be called.
Flags for the non-constant part of the residual and the jacobian
enum
	Whether to call the local operator's alpha_volume(), jacobian_apply_volume() and jacobian_volume().
enum
	Whether to call the local operator's alpha_volume_post_skeleton(), jacobian_apply_volume_post_skeleton() and jacobian_volume_post_skeleton().
enum
	Whether to call the local operator's alpha_skeleton(), jacobian_apply_skeleton() and jacobian_skeleton().
enum
	Whether to call the local operator's alpha_boundary(), jacobian_apply_boundary() and jacobian_boundary().
Flags for the constant part of the residual
enum
	Whether to call the local operator's lambda_volume().
enum
	Whether to call the local operator's lambda_volume_post_skeleton().
enum
	Whether to call the local operator's lambda_skeleton().
enum
	Whether to call the local operator's lambda_boundary().
Special flags
enum
	Whether to visit the skeleton methods from both sides.
enum
	Wheter the local operator describes a linear problem.

Public Member Functions
void	setTime (typename TP::Traits::RangeFieldType t)
	set time in parameter class
void	preStep (typename TP::Traits::RangeFieldType time, typename TP::Traits::RangeFieldType dt, int stages)
	to be called once before each time step
void	preStage (typename TP::Traits::RangeFieldType time, int r)
	to be called once before each stage
void	postStage ()
	to be called once at the end of each stage
TP::Traits::RangeFieldType	suggestTimestep (typename TP::Traits::RangeFieldType dt) const
	to be called once before each stage
void	jacobian_apply_boundary (const IG &ig, const LFSU &lfsu_s, const X &x_s, const LFSV &lfsv_s, Y &y_s) const
	apply local jacobian of the boundaryterm
void	jacobian_apply_boundary (const IG &ig, const LFSU &lfsu_s, const X &x_s, const X &z_s, const LFSV &lfsv_s, Y &y_s) const
	apply local jacobian of the boundaryterm
TP::Traits::RangeFieldType	getTime () const
	get current time More...
void	postStep ()
	to be called once at the end of each time step More...
int	getStage () const
	get current stage More...

Detailed Description

template<typename TP>
class Dune::PDELab::ConvectionDiffusionCCFV< TP >

a local operator for solving the linear convection-diffusion equation with CCFV

\begin{align*} \nabla\cdot(-A(x) \nabla u + b(x) u) + c(x)u &=& f \mbox{ in } \Omega, \\ u(t,x) &=& g(t,x) \mbox{ on } \partial\Omega_D \\ (b(x) u - A(x)\nabla u) \cdot n &=& j \mbox{ on } \partial\Omega_N \\ -(A(x)\nabla u) \cdot n &=& o \mbox{ on } \partial\Omega_O \end{align*}

Note:

• Works only on a grid that is parallel to the coordinate axes.
• This formulation is valid for velocity fields which are non-divergence free.
• Assumes that the tensor is diagonal !
• Outflow boundary conditions should only be set on the outflow boundary

Template Parameters

TP	model of ConvectionDiffusionParameterInterface

Member Function Documentation

getStage()

int Dune::PDELab::InstationaryLocalOperatorDefaultMethods< TP::Traits::RangeFieldType >::getStage ( ) const

inlineinherited

get current stage

Returns

The current stage number previously set by preStage().

getTime()

TP::Traits::RangeFieldType Dune::PDELab::InstationaryLocalOperatorDefaultMethods< TP::Traits::RangeFieldType >::getTime ( ) const

inlineinherited

get current time

Returns

The time previously set by setTime().

postStep()

void Dune::PDELab::InstationaryLocalOperatorDefaultMethods< TP::Traits::RangeFieldType >::postStep ( )

inlineinherited

to be called once at the end of each time step

Note

With the OneStepMethod and the ExplicitOneStepMetod, for reasons unknown this is only called for temporal but not for spatial local operators. With the MultiStepMethod this is called for all local operators.

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

• dune/pdelab/localoperator/convectiondiffusionccfv.hh