faceCorrectedSnGrad: New non-orthogonal correction scheme
using point values to construct the in-plane face-gradient
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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) 2011 OpenFOAM Foundation
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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 "faceCorrectedSnGrad.H"
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#include "volPointInterpolation.H"
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#include "triangle.H"
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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template<class Type>
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Foam::fv::faceCorrectedSnGrad<Type>::~faceCorrectedSnGrad()
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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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::fv::faceCorrectedSnGrad<Type>::fullGradCorrection
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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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(
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volPointInterpolation::New(mesh).interpolate(vf)
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);
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// construct GeometricField<Type, fvsPatchField, surfaceMesh>
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tmp<GeometricField<Type, fvsPatchField, surfaceMesh> > tsfCorr
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(
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new GeometricField<Type, fvsPatchField, surfaceMesh>
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(
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IOobject
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(
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"snGradCorr("+vf.name()+')',
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vf.instance(),
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mesh,
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IOobject::NO_READ,
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IOobject::NO_WRITE
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),
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mesh,
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vf.dimensions()*mesh.nonOrthDeltaCoeffs().dimensions()
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)
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);
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Field<Type>& sfCorr = tsfCorr().internalField();
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const pointField& points = mesh.points();
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const faceList& faces = mesh.faces();
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const vectorField& Sf = mesh.Sf().internalField();
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const vectorField& C = mesh.C().internalField();
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const scalarField& magSf = mesh.magSf().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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typename outerProduct<vector, Type>::type fgrad
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(
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outerProduct<vector, Type>::type::zero
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);
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const face& fi = faces[facei];
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vector nf(Sf[facei]/magSf[facei]);
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for (label pi=0; pi<fi.size(); pi++)
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{
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// Next point index
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label pj = (pi+1)%fi.size();
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// Edge normal in plane of face
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vector edgen(nf^(points[fi[pj]] - points[fi[pi]]));
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// Edge centre field value
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Type pvfe(0.5*(pvf[fi[pj]] + pvf[fi[pi]]));
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// Integrate face gradient
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fgrad += edgen*pvfe;
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}
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// Finalize face-gradient by dividing by face area
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fgrad /= magSf[facei];
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// Calculate correction vector
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vector dCorr(C[neighbour[facei]] - C[owner[facei]]);
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dCorr /= (nf & dCorr);
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// if (mag(dCorr) > 2) dCorr *= 2/mag(dCorr);
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sfCorr[facei] = dCorr&fgrad;
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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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template<class Type>
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Foam::tmp<Foam::GeometricField<Type, Foam::fvsPatchField, Foam::surfaceMesh> >
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Foam::fv::faceCorrectedSnGrad<Type>::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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// construct GeometricField<Type, fvsPatchField, surfaceMesh>
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tmp<GeometricField<Type, fvsPatchField, surfaceMesh> > tssf
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(
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new GeometricField<Type, fvsPatchField, surfaceMesh>
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(
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IOobject
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(
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"snGradCorr("+vf.name()+')',
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vf.instance(),
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mesh,
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IOobject::NO_READ,
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IOobject::NO_WRITE
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),
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mesh,
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vf.dimensions()*mesh.nonOrthDeltaCoeffs().dimensions()
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)
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);
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GeometricField<Type, fvsPatchField, surfaceMesh>& ssf = tssf();
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for (direction cmpt = 0; cmpt < pTraits<Type>::nComponents; cmpt++)
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{
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ssf.replace
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(
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cmpt,
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faceCorrectedSnGrad<typename pTraits<Type>::cmptType>(mesh)
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.fullGradCorrection(vf.component(cmpt))
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);
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}
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return tssf;
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}
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// ************************************************************************* //
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@ -0,0 +1,157 @@
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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 OpenFOAM Foundation
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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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|
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OpenFOAM is free software: you can redistribute it and/or modify it
|
||||
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
|
||||
(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/>.
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Class
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Foam::fv::faceCorrectedSnGrad
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Description
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Simple central-difference snGrad scheme with non-orthogonal correction.
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SourceFiles
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faceCorrectedSnGrad.C
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\*---------------------------------------------------------------------------*/
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#ifndef faceCorrectedSnGrad_H
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#define faceCorrectedSnGrad_H
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#include "snGradScheme.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace fv
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{
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/*---------------------------------------------------------------------------*\
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Class faceCorrectedSnGrad Declaration
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\*---------------------------------------------------------------------------*/
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template<class Type>
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class faceCorrectedSnGrad
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:
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public snGradScheme<Type>
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{
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// Private Member Functions
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//- Disallow default bitwise assignment
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void operator=(const faceCorrectedSnGrad&);
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public:
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//- Runtime type information
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TypeName("faceCorrected");
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// Constructors
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//- Construct from mesh
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faceCorrectedSnGrad(const fvMesh& mesh)
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:
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snGradScheme<Type>(mesh)
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{}
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//- Construct from mesh and data stream
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faceCorrectedSnGrad(const fvMesh& mesh, Istream&)
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:
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snGradScheme<Type>(mesh)
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{}
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//- Destructor
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virtual ~faceCorrectedSnGrad();
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// Member Functions
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//- Return the interpolation weighting factors for the given field
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virtual tmp<surfaceScalarField> deltaCoeffs
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(
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const GeometricField<Type, fvPatchField, volMesh>&
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) const
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{
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return this->mesh().nonOrthDeltaCoeffs();
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}
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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 faceCorrectedSnGrad
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// for the given field using the gradient of the field
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tmp<GeometricField<Type, fvsPatchField, surfaceMesh> >
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fullGradCorrection
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(
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const GeometricField<Type, fvPatchField, volMesh>&
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) const;
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//- Return the explicit correction to the faceCorrectedSnGrad
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// for the given field using the gradients of the field components
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virtual tmp<GeometricField<Type, fvsPatchField, surfaceMesh> >
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correction(const GeometricField<Type, fvPatchField, volMesh>&) const;
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};
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// * * * * * * * * Template Member Function Specialisations * * * * * * * * //
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template<>
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tmp<surfaceScalarField> faceCorrectedSnGrad<scalar>::correction
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(
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const volScalarField& vsf
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) const;
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template<>
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tmp<surfaceVectorField> faceCorrectedSnGrad<vector>::correction
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(
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const volVectorField& vvf
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) const;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace fv
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#ifdef NoRepository
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# include "faceCorrectedSnGrad.C"
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#endif
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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@ -0,0 +1,62 @@
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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 OpenFOAM Foundation
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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
|
||||
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/>.
|
||||
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\*---------------------------------------------------------------------------*/
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#include "faceCorrectedSnGrad.H"
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#include "fvMesh.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace fv
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{
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makeSnGradScheme(faceCorrectedSnGrad)
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}
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}
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template<>
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Foam::tmp<Foam::surfaceScalarField>
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Foam::fv::faceCorrectedSnGrad<Foam::scalar>::correction
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(
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const volScalarField& vsf
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) const
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{
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return fullGradCorrection(vsf);
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}
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template<>
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Foam::tmp<Foam::surfaceVectorField>
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Foam::fv::faceCorrectedSnGrad<Foam::vector>::correction
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(
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const volVectorField& vvf
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) const
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{
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return fullGradCorrection(vvf);
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}
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// ************************************************************************* //
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