Files
openfoam/src/mesh/autoMesh/autoHexMesh/externalDisplacementMeshMover/fieldSmoother/fieldSmootherTemplates.C
mattijs 4d1159e685 ENH: snappyHexMesh: various improvements. See below or the default snappyHexMeshDict.
Refinement:
-----------
// Optionally avoid patch merging - keeps hexahedral cells
// (to be used with automatic refinement/unrefinement)
//mergePatchFaces off;

// Optional multiple locationsInMesh with corresponding optional cellZone
// (automatically generates faceZones inbetween)
locationsInMesh
(
    ((-0.09 -0.039 -0.049)  bottomAir)  // cellZone bottomAir
    ((-0.09 0.009 -0.049)   topAir)     // cellZone topAir
);

// Optional faceType and patchType specification for these faceZones
faceZoneControls
{
    bottomAir_to_topAir
    {
        faceType baffle;
    }
}

/ Optional checking of 'bleeding' of mesh through a specifying a locations
// outside the mesh
locationsOutsideMesh ((0 0 0)(12.3 101.17 3.98));

// Improved refinement: refine all cells with all (or all but one) sides refined

// Improved refinement: refine all cells with opposing faces with different
// refinement level. These cells can happen on multiply curved surfaces.
// Default on, can be switched off with
//interfaceRefine false;

Snapping
--------
// Optional smoothing of points at refinement interfaces. This will reduce
// the non-orthogonality at refinement interfaces.
//nSmoothInternal $nSmoothPatch;

Layering
--------

// Layers can be added to patches or to any side of a faceZone.
// (Any faceZone internally gets represented as two patches)

// The angle to merge patch faces can be set independently of the
// featureAngle. This is especially useful for large feature angles
// Default is the same as the featureAngle.
//mergePatchFacesAngle 45;

// Optional mesh shrinking type 'displacementMotionSolver'. It uses any
// displacementMotionSolver, e.g. displacementSBRStress
// (default is the medial-axis algorithm, 'displacementMedialAxis')
//meshShrinker displacementMotionSolver;
2015-10-14 14:49:37 +01:00

104 lines
3.2 KiB
C

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2015 OpenFOAM Foundation
\\/ M anipulation | Copyright (C) 2015 OpenCFD Ltd.
-------------------------------------------------------------------------------
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/>.
\*---------------------------------------------------------------------------*/
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
template <class Type>
void Foam::fieldSmoother::minSmoothField
(
const label nIter,
const PackedBoolList& isPatchMasterPoint,
const PackedBoolList& isPatchMasterEdge,
const indirectPrimitivePatch& adaptPatch,
const scalarField& fieldMinMag,
Field<Type>& field
) const
{
const edgeList& edges = adaptPatch.edges();
const labelList& meshPoints = adaptPatch.meshPoints();
scalarField edgeWeights(edges.size());
scalarField invSumWeight(meshPoints.size());
meshRefinement::calculateEdgeWeights
(
mesh_,
isPatchMasterEdge,
meshPoints,
edges,
edgeWeights,
invSumWeight
);
// Get smoothly varying patch field.
Info<< typeName << " : Smoothing field ..." << endl;
for (label iter = 0; iter < nIter; iter++)
{
Field<Type> average(adaptPatch.nPoints());
meshRefinement::weightedSum
(
mesh_,
isPatchMasterEdge,
meshPoints,
edges,
edgeWeights,
field,
average
);
average *= invSumWeight;
// Transfer to field
forAll(field, pointI)
{
//full smoothing neighbours + point value
average[pointI] = 0.5*(field[pointI]+average[pointI]);
// perform monotonic smoothing
if
(
mag(average[pointI]) < mag(field[pointI])
&& mag(average[pointI]) >= mag(fieldMinMag[pointI])
)
{
field[pointI] = average[pointI];
}
}
// Do residual calculation every so often.
if ((iter % 10) == 0)
{
scalar resid = meshRefinement::gAverage
(
isPatchMasterPoint,
mag(field-average)()
);
Info<< " Iteration " << iter << " residual " << resid << endl;
}
}
}
// ************************************************************************* //