DUNE PDELab (git)

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

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

Public Types

Flags selective assembly
enum  
 Whether to do selective assembly on the elements, i.e. whether or not skip_entity() should be called.
 
enum  
 Whether to do selective assembly on the intersections, i.e. whether or not skip_intersection() should be called.
 
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
TPmodel 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.

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