Dynamic mesh refinement/unrefinement based on volScalarField values. More...

Inheritance diagram for refiner:

Collaboration diagram for refiner:

Public Member Functions
	TypeName ("refiner")
	Runtime type information. More...

	refiner (fvMesh &mesh, const dictionary &dict)
	Construct from fvMesh and dictionary. More...

	refiner (const refiner &)=delete
	Disallow default bitwise copy construction. More...

virtual	~refiner ()
	Destructor. More...

const hexRef8 &	meshCutter () const
	Direct access to the refinement engine. More...

const PackedBoolList &	protectedCell () const
	Cells which should not be refined/unrefined. More...

PackedBoolList &	protectedCell ()
	Cells which should not be refined/unrefined. More...

virtual bool	update ()
	Update the mesh for both mesh motion and topology change. More...

virtual void	topoChange (const polyTopoChangeMap &)
	Update corresponding to the given map. More...

virtual void	mapMesh (const polyMeshMap &)
	Update from another mesh using the given map. More...

virtual void	distribute (const polyDistributionMap &)
	Update corresponding to the given distribution map. More...

virtual bool	write (const bool write=true) const
	Write using given format, version and compression. More...

void	operator= (const refiner &)=delete
	Disallow default bitwise assignment. More...

Public Member Functions inherited from fvMeshTopoChanger
	TypeName ("fvMeshTopoChanger")
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, fvMeshTopoChanger, fvMesh,(fvMesh &mesh, const dictionary &dict),(mesh, dict))

	fvMeshTopoChanger (fvMesh &)
	Construct from fvMesh. More...

	fvMeshTopoChanger (const fvMeshTopoChanger &)=delete
	Disallow default bitwise copy construction. More...

virtual	~fvMeshTopoChanger ()
	Destructor. More...

fvMesh &	mesh ()
	Return the fvMesh. More...

const fvMesh &	mesh () const
	Return the fvMesh. More...

virtual bool	dynamic () const
	Is mesh dynamic, i.e. might it change? More...

void	operator= (const fvMeshTopoChanger &)=delete
	Disallow default bitwise assignment. More...

Additional Inherited Members
Static Public Member Functions inherited from fvMeshTopoChanger
static autoPtr< fvMeshTopoChanger >	New (fvMesh &, const dictionary &dict)
	Select, construct and return the fvMeshTopoChanger. More...

static autoPtr< fvMeshTopoChanger >	New (fvMesh &)
	Select, construct and return the fvMeshTopoChanger. More...

Detailed Description

Dynamic mesh refinement/unrefinement based on volScalarField values.

Refinement can optionally be specified in a cellZone or in multiple regions, each controlled by a different volScalarField.

Usage

Example of single field based refinement in all cells:

topoChanger
{
    type            refiner;

    libs            ("libfvMeshTopoChangers.so");

    // How often to refine
    refineInterval  1;

    // Field to be refinement on
    field           alpha.water;

    // Refine field in between lower..upper
    lowerRefineLevel 0.001;
    upperRefineLevel 0.999;

    // Have slower than 2:1 refinement
    nBufferLayers   1;

    // Refine cells only up to maxRefinement levels
    maxRefinement   2;

    // Stop refinement if maxCells reached
    maxCells        200000;

    // Flux field and corresponding velocity field. Fluxes on changed
    // faces get recalculated by interpolating the velocity. Use 'none'
    // on surfaceScalarFields that do not need to be reinterpolated.
    correctFluxes
    (
        (phi none)
        (nHatf none)
        (rhoPhi none)
        (alphaPhi.water none)
        (ghf none)
    );

    // Write the refinement level as a volScalarField
    dumpLevel       true;
}

Example of single field based refinement in two regions:

topoChanger
{
    type            refiner;

    // How often to refine
    refineInterval  1;

    refinementRegions
    {
        region1
        {
            cellZone        refinementRegion1;

            // Field to be refinement on
            field           alpha.water;

            // Refine field in between lower..upper
            lowerRefineLevel 0.001;
            upperRefineLevel 0.999;

            // Refine cells only up to maxRefinement levels
            maxRefinement   1;

            // If value < unrefineLevel unrefine
            unrefineLevel   10;
        }

        region2
        {
            cellZone        refinementRegion2;

            // Field to be refinement on
            field           alpha.water;

            // Refine field in between lower..upper
            lowerRefineLevel 0.001;
            upperRefineLevel 0.999;

            // Refine cells only up to maxRefinement levels
            maxRefinement   2;

            // If value < unrefineLevel unrefine
            unrefineLevel   10;
        }
    }

    // If value < unrefineLevel (default=great) unrefine
    // unrefineLevel   10;
    // Have slower than 2:1 refinement
    nBufferLayers   1;

    // Stop refinement if maxCells reached
    maxCells        200000;

    // Flux field and corresponding velocity field. Fluxes on changed
    // faces get recalculated by interpolating the velocity. Use 'none'
    // on surfaceScalarFields that do not need to be reinterpolated.
    correctFluxes
    (
        (phi none)
        (nHatf none)
        (rhoPhi none)
        (alphaPhi.water none)
        (ghf none)
    );

    // Write the refinement level as a volScalarField
    dumpLevel       true;
}

Source files