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surfaceInterpolation: New pointLinear scheme
First interpolates from the cells to the vertices and then from the face vertices to the face centres. This may be a useful scheme for calculating gradients on bad/tet meshes when used in conjunction with the Gauss gradient scheme.
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Henry
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2004-2011 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "pointLinear.H"
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#include "fvMesh.H"
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#include "volPointInterpolation.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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template<class Type>
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Foam::tmp<Foam::GeometricField<Type, Foam::fvsPatchField, Foam::surfaceMesh> >
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Foam::pointLinear<Type>::
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correction
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(
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const GeometricField<Type, fvPatchField, volMesh>& vf
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) const
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{
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const fvMesh& mesh = this->mesh();
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GeometricField<Type, pointPatchField, pointMesh> pvf =
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volPointInterpolation::New(mesh).interpolate(vf);
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tmp<GeometricField<Type, fvsPatchField, surfaceMesh> > tsfCorr =
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linearInterpolate(vf);
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Field<Type>& sfCorr = tsfCorr().internalField();
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const pointField& points = mesh.points();
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const pointField& C = mesh.C().internalField();
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const faceList& faces = mesh.faces();
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const scalarField& w = mesh.weights().internalField();
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const labelList& owner = mesh.owner();
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const labelList& neighbour = mesh.neighbour();
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forAll(sfCorr, facei)
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{
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point pi =
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w[owner[facei]]*C[owner[facei]]
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+ (1.0 - w[owner[facei]])*C[neighbour[facei]];
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scalar at = triangle<point, const point&>
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(
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pi,
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points[faces[facei][0]],
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points[faces[facei][faces[facei].size()-1]]
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).mag();
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scalar sumAt = at;
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Type sumPsip = at*(1.0/3.0)*
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(
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sfCorr[facei]
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+ pvf[faces[facei][0]]
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+ pvf[faces[facei][faces[facei].size()-1]]
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);
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for (label pointi=1; pointi<faces[facei].size(); pointi++)
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{
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at = triangle<point, const point&>
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(
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pi,
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points[faces[facei][pointi]],
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points[faces[facei][pointi-1]]
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).mag();
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sumAt += at;
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sumPsip += at*(1.0/3.0)*
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(
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sfCorr[facei]
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+ pvf[faces[facei][pointi]]
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+ pvf[faces[facei][pointi-1]]
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);
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}
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sfCorr[facei] = sumPsip/sumAt - sfCorr[facei];
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}
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tsfCorr().boundaryField() = pTraits<Type>::zero;
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return tsfCorr;
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}
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namespace Foam
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{
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makeSurfaceInterpolationScheme(pointLinear);
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}
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// ************************************************************************* //
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@ -0,0 +1,129 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2011 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
|
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
|
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(at your option) any later version.
|
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|
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
|
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
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for more details.
|
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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pointLinear
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Description
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Face-point interpolation scheme class derived from linear and
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returns linear weighting factors but also applies an explicit correction.
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Uses volPointInterpolation to obtain the field values at the face-points.
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SourceFiles
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pointLinear.C
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\*---------------------------------------------------------------------------*/
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#ifndef pointLinear_H
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#define pointLinear_H
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#include "linear.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class pointLinear Declaration
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\*---------------------------------------------------------------------------*/
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template<class Type>
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class pointLinear
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:
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public linear<Type>
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{
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// Private Member Functions
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//- Disallow default bitwise copy construct
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pointLinear(const pointLinear&);
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//- Disallow default bitwise assignment
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void operator=(const pointLinear&);
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public:
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//- Runtime type information
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TypeName("pointLinear");
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// Constructors
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//- Construct from mesh
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pointLinear(const fvMesh& mesh)
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:
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linear<Type>(mesh)
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{}
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//- Construct from mesh and Istream
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pointLinear
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(
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const fvMesh& mesh,
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Istream&
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)
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:
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linear<Type>(mesh)
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{}
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//- Construct from mesh, faceFlux and Istream
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pointLinear
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(
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const fvMesh& mesh,
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const surfaceScalarField&,
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Istream&
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)
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:
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linear<Type>(mesh)
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{}
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// Member Functions
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//- Return true if this scheme uses an explicit correction
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virtual bool corrected() const
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{
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return true;
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}
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//- Return the explicit correction to the face-interpolate
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virtual tmp<GeometricField<Type, fvsPatchField, surfaceMesh> >
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correction
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(
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const GeometricField<Type, fvPatchField, volMesh>& vf
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) const;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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