layerAdditionRemoval.H

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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::layerAdditionRemoval
 
Description
    Cell layer addition mesh modifier
 
SourceFiles
    layerAdditionRemoval.C
    addCellLayer.C
    removeCellLayer.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef layerAdditionRemoval_H
#define layerAdditionRemoval_H
 
#include "polyMeshModifier.H"
#include "primitiveFacePatch.H"
#include "ZoneIDs.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                    Class layerAdditionRemoval Declaration
\*---------------------------------------------------------------------------*/
 
class layerAdditionRemoval
:
    public polyMeshModifier
{
    // Private Data
 
        //- Master face zone ID
        faceZoneID faceZoneID_;
 
        //- Min thickness of extrusion layer.  Triggers layer removal
        mutable scalar minLayerThickness_;
 
        //- Max thickness of extrusion layer.  Triggers layer addition
        mutable scalar maxLayerThickness_;
 
        //- Switch to calculate thickness as volume/area
        //  If false, thickness calculated from edges
        const bool thicknessFromVolume_;
 
        //- Layer thickness from previous step
        //  Used to decide whether to add or remove layers
        mutable scalar oldLayerThickness_;
 
        //- Point pairing
        mutable labelList* pointsPairingPtr_;
 
        //- Face pairing
        mutable labelList* facesPairingPtr_;
 
        //- Layer removal trigger time index
        mutable label triggerRemoval_;
 
        //- Layer addition trigger time index
        mutable label triggerAddition_;
 
 
    // Private Member Functions
 
        //- Check validity of construction data
        void checkDefinition();
 
 
        // Topological changes
 
            //- Check for valid layer
            bool validCollapse() const;
 
            //- Set layer pairing.  Return true if a valid layer exists
            bool setLayerPairing() const;
 
            //- Return points pairing in a layer (not automatic!)
            const labelList& pointsPairing() const;
 
            //- Return faces pairing in a layer (not automatic!)
            const labelList& facesPairing() const;
 
            //- Calculate the offset to the next layer
            tmp<vectorField> extrusionDir() const;
 
            //- Add a layer of cells
            void addCellLayer(polyTopoChange&) const;
 
            //- Remove a layer of cells
            void removeCellLayer(polyTopoChange&) const;
 
            //- Clear addressing
            void clearAddressing() const;
 
 
        // Helpers
 
            //- Optionally read old thickness
            static scalar readOldThickness(const dictionary&);
 
 
    // Static Data Members
 
        //- Thickness insertion fraction for the pre-motion
        static const scalar addDelta_;
 
        //- Thickness removal fraction for the cell collapse
        //  Note: the cell will be collapsed to this relative
        //  thickness before the layer is removed.
        static const scalar removeDelta_;
 
public:
 
    //- Runtime type information
    TypeName("layerAdditionRemoval");
 
 
    // Constructors
 
        //- Construct from components
        layerAdditionRemoval
        (
            const word& name,
            const label index,
            const polyTopoChanger& ptc,
            const word& zoneName,
            const scalar minThickness,
            const scalar maxThickness,
            const Switch thicknessFromVolume = true
        );
 
        //- Construct from dictionary
        layerAdditionRemoval
        (
            const word& name,
            const dictionary& dict,
            const label index,
            const polyTopoChanger& ptc
        );
 
        //- Disallow default bitwise copy construction
        layerAdditionRemoval(const layerAdditionRemoval&) = delete;
 
 
    //- Destructor
    virtual ~layerAdditionRemoval();
 
 
    // Member Functions
 
        //- Check for topology change
        virtual bool changeTopology() const;
 
        //- Insert the layer addition/removal instructions
        //  into the topological change
        virtual void setRefinement(polyTopoChange&) const;
 
        //- Modify motion points to comply with the topological change
        virtual void modifyMotionPoints(pointField& motionPoints) const;
 
        //- Force recalculation of locally stored data on topological change
        virtual void topoChange(const polyTopoChangeMap&);
 
 
        // Edit
 
            //- Return min layer thickness which triggers removal
            scalar minLayerThickness() const
            {
                return minLayerThickness_;
            }
 
            //- Set min layer thickness which triggers removal
           void setMinLayerThickness(const scalar t) const;
 
            //- Return max layer thickness which triggers removal
            scalar maxLayerThickness() const
            {
                return maxLayerThickness_;
            }
 
            //- Set max layer thickness which triggers removal
           void setMaxLayerThickness(const scalar t) const;
 
 
        //- Write
        virtual void write(Ostream&) const;
 
        //- Write dictionary
        virtual void writeDict(Ostream&) const;
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const layerAdditionRemoval&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //