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Harmonic interpolation for all variables

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This commit is contained in:
Hrvoje Jasak 2011-01-17 10:42:45 +00:00
parent 8d901495fb
commit 2704c298bc
2 changed files with 55 additions and 29 deletions
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10
src/finiteVolume/interpolation/surfaceInterpolation/schemes/harmonic/harmonic.C
View file

@ -34,15 +34,7 @@ Description
namespace Foam
{
defineTypeNameAndDebug(harmonic, 0);
surfaceInterpolationScheme<scalar>::addMeshFluxConstructorToTable<harmonic>
addharmonicScalarMeshFluxConstructorToTable_;
surfaceInterpolationScheme<scalar>::addMeshConstructorToTable<harmonic>
addharmonicScalarMeshConstructorToTable_;
makeSurfaceInterpolationScheme(harmonic)
}
// ************************************************************************* //

72
src/finiteVolume/interpolation/surfaceInterpolation/schemes/harmonic/harmonic.H
View file

@ -42,7 +42,6 @@ SourceFiles
#include "surfaceInterpolationScheme.H"
#include "volFields.H"
#include "surfaceFields.H"
#include "reverseLinear.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@ -53,9 +52,10 @@ namespace Foam
Class harmonic Declaration
\*---------------------------------------------------------------------------*/
template<class Type>
class harmonic
:
public surfaceInterpolationScheme<scalar>
public surfaceInterpolationScheme<Type>
{
// Private Member Functions
@ -74,10 +74,10 @@ public:
//- Construct from mesh
harmonic(const fvMesh& mesh)
:
surfaceInterpolationScheme<scalar>(mesh)
surfaceInterpolationScheme<Type>(mesh)
{}
//- Construct from Istream.
//- Construct from Istream
// The name of the flux field is read from the Istream and looked-up
// from the mesh objectRegistry
harmonic
@ -86,7 +86,7 @@ public:
Istream& is
)
:
surfaceInterpolationScheme<scalar>(mesh)
surfaceInterpolationScheme<Type>(mesh)
{}
//- Construct from faceFlux and Istream
@ -97,7 +97,7 @@ public:
Istream& is
)
:
surfaceInterpolationScheme<scalar>(mesh)
surfaceInterpolationScheme<Type>(mesh)
{}
@ -106,26 +106,60 @@ public:
//- Return the interpolation weighting factors
virtual tmp<surfaceScalarField> weights
(
const GeometricField<scalar, fvPatchField, volMesh>&
const GeometricField<Type, fvPatchField, volMesh>& phi
) const
{
notImplemented
tmp<surfaceScalarField> tw
(
"harmonic::weights"
"(const GeometricField<scalar, fvPatchField, volMesh>&)"
new surfaceScalarField
(
IOobject
(
"harmonicWeightingFactors" + phi.name(),
this->mesh().time().timeName(),
this->mesh()
),
this->mesh() ,
dimless
)
);
return tmp<surfaceScalarField>(NULL);
surfaceScalarField& w = tw();
const unallocLabelList& owner = this->mesh().owner();
const unallocLabelList& neighbour = this->mesh().neighbour();
scalarField magPhi = mag(phi);
// Initialise weights to 0.5 for uniform field (den = 0)
scalarField& wIn = w.internalField();
wIn = 0.5;
// Calculate internal weights using field magnitude
scalar mOwn, mNei, den, mean;
forAll (owner, faceI)
{
mOwn = magPhi[owner[faceI]];
mNei = magPhi[neighbour[faceI]];
mean = 2*(mOwn*mNei)/(mOwn + mNei + SMALL);
den = mOwn - mNei;
if (mag(den) > SMALL)
{
wIn[faceI] = (mean - mNei)/den;
}
else
{
// Use 0.5 weights
}
}
//- Return the face-interpolate of the given cell field
virtual tmp<GeometricField<scalar, fvsPatchField, surfaceMesh> >
interpolate
(
const GeometricField<scalar, fvPatchField, volMesh>& vf
) const
{
return 1.0/(reverseLinear<scalar>(vf.mesh()).interpolate(1.0/vf));
// Boundary weights are 1
w.boundaryField() = 1;
return tw;
}
};