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BUG: setAlphaField: fix incompatibilities with BCs (#1962)

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Co-authored-by: Johan Roenby <johan.roenby@gmail.com>
Co-authored-by: Henning Scheufler <Henning.Scheufler@dlr.de>
This commit is contained in:
Johan Roenby
2020-12-21 09:20:32 +00:00
committed by Andrew Heather
parent e77e4dd462
commit 54dfcf5046
1 changed files with 48 additions and 33 deletions
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81
applications/utilities/preProcessing/setAlphaField/setAlphaField.C
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@ -7,7 +7,8 @@
-------------------------------------------------------------------------------
Copyright (C) 2016-2017 DHI
Copyright (C) 2017-2020 OpenCFD Ltd.
Copyright (c) 2017-2020, German Aerospace Center (DLR)
Copyright (C) 2017-2020 German Aerospace Center (DLR)
Copyright (C) 2020 Johan Roenby
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
@ -45,6 +46,7 @@ Description
#include "implicitFunction.H"
#include "cutCellIso.H"
#include "cutFaceIso.H"
#include "OBJstream.H"
@ -90,6 +92,50 @@ void isoFacesToFile
}
}
void setAlpha
(
volScalarField& alpha1,
DynamicList<List<point>>& facePts,
scalarField& f,
const bool writeOBJ
)
{
const fvMesh& mesh = alpha1.mesh();
cutCellIso cutCell(mesh, f);
cutFaceIso cutFace(mesh, f);
forAll(alpha1, cellI)
{
cutCell.calcSubCell(cellI, 0.0);
alpha1[cellI] = max(min(cutCell.VolumeOfFluid(), 1), 0);
if (writeOBJ && (mag(cutCell.faceArea()) >= 1e-14))
{
facePts.append(cutCell.facePoints());
}
}
// Setting boundary alpha1 values
forAll(mesh.boundary(), patchi)
{
if (mesh.boundary()[patchi].size() > 0)
{
const label start = mesh.boundary()[patchi].patch().start();
scalarField& alphap = alpha1.boundaryFieldRef()[patchi];
const scalarField& magSfp = mesh.magSf().boundaryField()[patchi];
forAll(alphap, patchFacei)
{
const label facei = patchFacei + start;
cutFace.calcSubFace(facei, 0.0);
alphap[patchFacei] =
mag(cutFace.subFaceArea())/magSfp[patchFacei];
}
}
}
}
int main(int argc, char *argv[])
{
@ -143,38 +189,9 @@ int main(int argc, char *argv[])
f[pi] = func->value(mesh.points()[pi]);
};
cutCellIso cutCell(mesh, f);
DynamicList<List<point>> facePts;
DynamicList<triSurface> surface;
surfaceScalarField cellToCellDist(mag(mesh.delta()));
forAll(alpha1, cellI)
{
label cellStatus = cutCell.calcSubCell(cellI, 0.0);
if (cellStatus == -1)
{
alpha1[cellI] = 1;
}
else if (cellStatus == 1)
{
alpha1[cellI] = 0;
}
else if (cellStatus == 0)
{
if (mag(cutCell.faceArea()) != 0)
{
alpha1[cellI] = max(min(cutCell.VolumeOfFluid(), 1), 0);
if (writeOBJ && (mag(cutCell.faceArea()) >= 1e-14))
{
facePts.append(cutCell.facePoints());
}
}
}
}
setAlpha(alpha1, facePts, f, writeOBJ);
if (writeOBJ)
{
@ -188,8 +205,6 @@ int main(int argc, char *argv[])
alpha1 = scalar(1) - alpha1;
}
alpha1.correctBoundaryConditions();
Info<< "Writing new alpha field " << alpha1.name() << endl;
alpha1.write();