surfaceDisplacementPointPatchVectorField.H

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/*---------------------------------------------------------------------------*\
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License
    This file is part of OpenFOAM.
 
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    under the terms of the GNU General Public License as published by
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    for more details.
 
    You should have received a copy of the GNU General Public License
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Class
    Foam::surfaceDisplacementPointPatchVectorField
 
Description
    Displacement fixed by projection onto triSurface.
    Use in a displacementMotionSolver
    as a bc on the pointDisplacement field.
 
    Calculates the projection onto the surface according
    to the projectMode
    - NEAREST : nearest
    - POINTNORMAL : intersection with point normal
    - FIXEDNORMAL : intersection with fixed vector
 
    This displacement is then clipped with the specified velocity * deltaT.
 
    Optionally (intersection only) removes a component ("wedgePlane") to
    stay in 2D.
 
    Needs:
    - geometry : dictionary with searchableSurfaces. (usually
      triSurfaceMeshes in constant/triSurface)
    - projectMode : see above
    - projectDirection : if projectMode = fixedNormal
    - wedgePlane : -1 or component to knock out of intersection normal
    - frozenPointsZone : empty or name of pointZone containing points
                         that do not move
 
SourceFiles
    surfaceDisplacementPointPatchVectorField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef surfaceDisplacementPointPatchVectorField_H
#define surfaceDisplacementPointPatchVectorField_H
 
#include "pointPatchFields.H"
#include "fixedValuePointPatchFields.H"
#include "searchableSurfaces.H"
#include "Switch.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
          Class surfaceDisplacementPointPatchVectorField Declaration
\*---------------------------------------------------------------------------*/
 
class surfaceDisplacementPointPatchVectorField
:
    public fixedValuePointPatchVectorField
{
 
public:
 
    // Public data types
 
        enum projectMode
        {
            NEAREST,
            POINTNORMAL,
            FIXEDNORMAL
        };
 
private:
 
    // Private data
 
        //- Project mode names
        static const NamedEnum<projectMode, 3> projectModeNames_;
 
        //- Maximum velocity
        const vector velocity_;
 
        //- Names of surfaces
        const dictionary surfacesDict_;
 
        //- How to project/project onto surface
        const projectMode projectMode_;
 
        //- Direction to project
        const vector projectDir_;
 
        //- Plane for 2D wedge case or -1.
        const label wedgePlane_;
 
        //- pointZone with frozen points
        const word frozenPointsZone_;
 
        //- Demand driven: surface to project
        mutable autoPtr<searchableSurfaces> surfacesPtr_;
 
 
    // Private Member Functions
 
        //- Calculate displacement (w.r.t. points0()) to project onto surface
        void calcProjection(vectorField& displacement) const;
 
 
        //- Disallow default bitwise assignment
        void operator=(const surfaceDisplacementPointPatchVectorField&);
 
public:
 
    //- Runtime type information
    TypeName("surfaceDisplacement");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        surfaceDisplacementPointPatchVectorField
        (
            const pointPatch&,
            const DimensionedField<vector, pointMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        surfaceDisplacementPointPatchVectorField
        (
            const pointPatch&,
            const DimensionedField<vector, pointMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given patchField<vector> onto a new patch
        surfaceDisplacementPointPatchVectorField
        (
            const surfaceDisplacementPointPatchVectorField&,
            const pointPatch&,
            const DimensionedField<vector, pointMesh>&,
            const pointPatchFieldMapper&
        );
 
        //- Construct as copy
        surfaceDisplacementPointPatchVectorField
        (
            const surfaceDisplacementPointPatchVectorField&
        );
 
        //- Construct and return a clone
        virtual autoPtr<pointPatchVectorField> clone() const
        {
            return autoPtr<pointPatchVectorField>
            (
                new surfaceDisplacementPointPatchVectorField
                (
                    *this
                )
            );
        }
 
        //- Construct as copy setting internal field reference
        surfaceDisplacementPointPatchVectorField
        (
            const surfaceDisplacementPointPatchVectorField&,
            const DimensionedField<vector, pointMesh>&
        );
 
        //- Construct and return a clone setting internal field reference
        virtual autoPtr<pointPatchVectorField> clone
        (
            const DimensionedField<vector, pointMesh>& iF
        ) const
        {
            return autoPtr<pointPatchVectorField>
            (
                new surfaceDisplacementPointPatchVectorField
                (
                    *this,
                    iF
                )
            );
        }
 
    // Member Functions
 
        //- Surface to follow. Demand loads surfaceNames.
        const searchableSurfaces& surfaces() const;
 
        //- Update the coefficients associated with the patch field
        virtual void updateCoeffs();
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //