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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
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
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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::averageNeighbourFvGeometryScheme
Description
Geometry calculation scheme to minimise non-orthogonality/
SourceFiles
averageNeighbourFvGeometryScheme.C
\*---------------------------------------------------------------------------*/
#ifndef averageNeighbourFvGeometryScheme_H
#define averageNeighbourFvGeometryScheme_H
#include "highAspectRatioFvGeometryScheme.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
class primitiveMesh;
/*---------------------------------------------------------------------------*\
Class averageNeighbourFvGeometryScheme Declaration
\*---------------------------------------------------------------------------*/
class averageNeighbourFvGeometryScheme
:
public highAspectRatioFvGeometryScheme
{
private:
//- No copy construct
averageNeighbourFvGeometryScheme
(
const averageNeighbourFvGeometryScheme&
) = delete;
//- No copy assignment
void operator=(const averageNeighbourFvGeometryScheme&) = delete;
protected:
//- Number of averaging iterations
const label nIters_;
//- Blending between old-iteration cell centres and current average
const scalar relax_;
//- Clipping for pyramid heights - allowable shrinkage as fraction
// of original
const scalar minRatio_;
//- Clip face-centre correction vector if new triangle area
//- would get below min. Return number of clipped faces.
label clipFaceTet
(
const scalar minRatio,
const vectorField& faceCentres,
const vectorField& faceNormals,
vectorField& faceCorrection
) const;
//- Calculate pyramid heights
void makePyrHeights
(
const pointField& cellCentres,
const vectorField& faceCentres,
const vectorField& faceNormals,
scalarField& ownHeight,
scalarField& neiHeight
) const;
//- Clip correction vector if new pyramid height would get below min.
//- Return number of clipped cells.
label clipPyramids
(
const pointField& cellCentres,
const vectorField& faceCentres,
const vectorField& faceNormals,
const scalarField& minOwnHeight,
const scalarField& minNeiHeight,
vectorField& correction
) const;
//- Average neighbouring cell centres to minimise non-ortho
tmp<pointField> averageNeighbourCentres
(
const pointField& cellCentres,
const vectorField& faceNormals,
const scalarField& faceWeights
) const;
tmp<pointField> averageCentres
(
const pointField& cellCentres,
const pointField& faceCentres,
const vectorField& faceNormals
) const;
//- Make weights based on non-orthogonality
void makeNonOrthoWeights
(
const pointField& cellCentres,
const vectorField& faceNormals,
scalarField& cosAngles,
scalarField& faceWeights
) const;
public:
//- Runtime type information
TypeName("averageNeighbour");
// Constructors
//- Construct from mesh
averageNeighbourFvGeometryScheme
(
const fvMesh& mesh,
const dictionary& dict
);
//- Destructor
virtual ~averageNeighbourFvGeometryScheme() = default;
// Member Functions
//- Do what is necessary if the mesh has moved
virtual void movePoints();
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //