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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2020-2026 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
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/>.
\*---------------------------------------------------------------------------*/
#include "MPLIC.H"
#include "MPLICcell.H"
#include "volPointInterpolation.H"
#include "syncTools.H"
#include "slicedSurfaceFields.H"
#include "upwind.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(MPLIC, 0);
surfaceInterpolationScheme<scalar>::addMeshFluxConstructorToTable<MPLIC>
addMPLICScalarMeshFluxConstructorToTable_;
}
// * * * * * * * * * * * * * * * Private Functions * * * * * * * * * * * * * //
void Foam::MPLIC::setCellAlphaf
(
const label celli,
const scalarField& phi,
scalarField& alphaf,
boolList& correctedFaces,
const DynamicList<scalar>& cellAlphaf,
const fvMesh& mesh
) const
{
// Face owners reference
const labelList& own = mesh.faceOwner();
// The cell face labels
const labelList& cFaces = mesh.cells()[celli];
// Fill the alphaf with surface interpolation in direction of the flow
forAll(cFaces, i)
{
const label facei = cFaces[i];
const scalar phiSigni = sign(phi[facei]);
if
(
(own[facei] == celli && phiSigni == 1)
|| (own[facei] != celli && phiSigni == -1)
)
{
alphaf[facei] = cellAlphaf[i];
correctedFaces[facei] = true;
}
}
}
Foam::tmp<Foam::surfaceScalarField> Foam::MPLIC::surfaceAlpha
(
const volScalarField& alpha,
const surfaceScalarField& phi,
scalarField& initAlphaf,
const bool unweighted,
const scalar tol,
const bool isMPLIC
) const
{
// Finite volume mesh reference
const fvMesh& mesh = alpha.mesh();
// Reference to primitive mesh
const primitiveMesh& primMesh = mesh;
// Velocity field reference
const volVectorField& U
(
mesh.lookupObject<const volVectorField>
(
IOobject::groupName("U", phi.group())
)
);
// Interpolate alpha from volume to the points of the mesh
const scalarField alphap
(
volPointInterpolation::New(mesh).interpolate(alpha)
);
// Interpolate U from cell centres to the points of the mesh
vectorField Up;
if (!unweighted)
{
Up = volPointInterpolation::New(mesh).interpolate(U);
}
// Flatten down phi flux field
const scalarField splicedPhi
(
slicedSurfaceScalarField
(
IOobject
(
"splicedPhi",
mesh.time().name(),
mesh
),
phi,
false
).splice()
);
scalarField alphaf(mesh.nFaces(), 0);
// Mark which faces are corrected by MPLIC
boolList correctedFaces(mesh.nFaces(), false);
// Construct class for cell cut
MPLICcell cutCell(unweighted, isMPLIC);
// Loop through all the cells
forAll(mesh.cells(), celli)
{
if (alpha[celli] < (1 - tol) && alpha[celli] > tol)
{
// Store cell information
const MPLICcellStorage cellInfo
(
primMesh,
alphap,
Up,
alpha[celli],
U[celli],
celli
);
// Volume ratio matching algorithm
if (cutCell.matchAlpha(cellInfo))
{
// Fill cutCell.alphaf() with face values from this cell
setCellAlphaf
(
celli,
splicedPhi,
alphaf,
correctedFaces,
cutCell.alphaf(),
mesh
);
}
}
}
// Synchronise across the processor and cyclic patches
syncTools::syncFaceList(mesh, alphaf, addEqOp());
syncTools::syncFaceList(mesh, correctedFaces, addEqOp());
// Correct selected faces
forAll(correctedFaces, facei)
{
if (correctedFaces[facei])
{
initAlphaf[facei] = alphaf[facei];
}
}
if (!mesh.conformal())
{
FatalErrorInFunction
<< "The " << type() << " scheme is not compatible with "
<< "non-conformal meshes" << exit(FatalError);
}
// Convert the alphaPhi spliced field into a surfaceScalarField
tmp<surfaceScalarField> tsplicedAlpha
(
surfaceScalarField::New
(
"alphaf",
slicedSurfaceScalarField
(
IOobject
(
"alphaf",
mesh.time().name(),
mesh
),
mesh,
dimless,
initAlphaf,
false
),
fvsPatchField<scalar>::calculatedType()
)
);
surfaceScalarField& splicedAlpha = tsplicedAlpha.ref();
forAll(mesh.boundary(), patchi)
{
if (alpha.boundaryField()[patchi].fixesValue())
{
splicedAlpha.boundaryFieldRef()[patchi] =
alpha.boundaryField()[patchi];
}
}
return tsplicedAlpha;
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
Foam::tmp<Foam::surfaceScalarField> Foam::MPLIC::interpolate
(
const VolField<scalar>& vf
) const
{
tmp<surfaceScalarField> tvff(upwind<scalar>(mesh(), phi_).interpolate(vf));
scalarField splicedTvff
(
slicedSurfaceScalarField
(
IOobject
(
"splicedTvff",
mesh().time().name(),
mesh()
),
tvff,
false
).splice()
);
return surfaceAlpha(vf, phi_, splicedTvff, true, 1e-6);
}
// ************************************************************************* //
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