lagrangian: Support meshToMesh mapping
Lagrangian is now compatible with the meshToMesh topology changer. If a cloud is being simulated and this topology changer is active, then the cloud data will be automatically mapped between the specified sequence of meshes in the same way as the finite volume data. This works both for serial and parallel simulations. In addition, mapFieldsPar now also supports mapping of Lagrangian data when run in parallel.
This commit is contained in:
Will Bainbridge
@ -0,0 +1,423 @@
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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 | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2011-2022 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 "meshToMesh0.H"
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#include "volFields.H"
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#include "interpolationCellPoint.H"
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#include "SubField.H"
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#include "mixedFvPatchField.H"
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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template<class Type>
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void Foam::meshToMesh0::mapField
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(
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Field<Type>& toF,
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const Field<Type>& fromVf,
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const labelList& adr
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) const
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{
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// Direct mapping of nearest-cell values
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forAll(toF, celli)
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{
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if (adr[celli] != -1)
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{
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toF[celli] = fromVf[adr[celli]];
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}
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}
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// toF.map(fromVf, adr);
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}
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template<class Type>
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void Foam::meshToMesh0::interpolateField
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(
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Field<Type>& toF,
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const GeometricField<Type, fvPatchField, volMesh>& fromVf,
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const labelListList& adr,
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const scalarListList& weights
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) const
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{
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// Inverse volume weighted interpolation
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forAll(toF, celli)
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{
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const labelList& overlapCells = adr[celli];
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const scalarList& w = weights[celli];
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Type f = Zero;
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forAll(overlapCells, i)
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{
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label fromCelli = overlapCells[i];
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f += fromVf[fromCelli]*w[i];
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toF[celli] = f;
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}
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}
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}
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template<class Type>
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void Foam::meshToMesh0::interpolateField
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(
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Field<Type>& toF,
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const GeometricField<Type, fvPatchField, volMesh>& fromVf,
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const labelList& adr,
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const scalarListList& weights
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) const
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{
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// Inverse distance weighted interpolation
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// get reference to cellCells
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const labelListList& cc = fromMesh_.cellCells();
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forAll(toF, celli)
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{
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if (adr[celli] != -1)
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{
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const labelList& neighbours = cc[adr[celli]];
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const scalarList& w = weights[celli];
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Type f = fromVf[adr[celli]]*w[0];
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for (label ni = 1; ni < w.size(); ni++)
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{
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f += fromVf[neighbours[ni - 1]]*w[ni];
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}
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toF[celli] = f;
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}
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}
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}
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template<class Type>
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void Foam::meshToMesh0::interpolateField
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(
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Field<Type>& toF,
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const GeometricField<Type, fvPatchField, volMesh>& fromVf,
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const labelList& adr,
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const vectorField& centres
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) const
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{
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// Cell-Point interpolation
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interpolationCellPoint<Type> interpolator(fromVf);
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forAll(toF, celli)
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{
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if (adr[celli] != -1)
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{
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toF[celli] = interpolator.interpolate(centres[celli], adr[celli]);
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}
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}
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}
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template<class Type>
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void Foam::meshToMesh0::interpolateInternalField
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(
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Field<Type>& toF,
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const GeometricField<Type, fvPatchField, volMesh>& fromVf,
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meshToMesh0::order ord
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) const
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{
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if (fromVf.mesh() != fromMesh_)
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{
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FatalErrorInFunction
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<< "the argument field does not correspond to the right mesh. "
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<< "Field size: " << fromVf.size()
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<< " mesh size: " << fromMesh_.nCells()
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<< exit(FatalError);
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}
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if (toF.size() != toMesh_.nCells())
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{
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FatalErrorInFunction
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<< "the argument field does not correspond to the right mesh. "
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<< "Field size: " << toF.size()
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<< " mesh size: " << toMesh_.nCells()
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<< exit(FatalError);
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}
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switch(ord)
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{
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case MAP:
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mapField(toF, fromVf, cellAddressing_);
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break;
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case INTERPOLATE:
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{
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interpolateField
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(
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toF,
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fromVf,
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cellAddressing_,
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inverseDistanceWeights()
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);
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break;
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}
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case CELL_POINT_INTERPOLATE:
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{
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interpolateField
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(
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toF,
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fromVf,
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cellAddressing_,
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toMesh_.cellCentres()
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);
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break;
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}
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case CELL_VOLUME_WEIGHT:
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{
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const labelListList& cellToCell = cellToCellAddressing();
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const scalarListList& invVolWeights = inverseVolumeWeights();
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interpolateField
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(
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toF,
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fromVf,
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cellToCell,
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invVolWeights
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);
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break;
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}
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default:
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FatalErrorInFunction
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<< "unknown interpolation scheme " << ord
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<< exit(FatalError);
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}
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}
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template<class Type>
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void Foam::meshToMesh0::interpolateInternalField
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(
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Field<Type>& toF,
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const tmp<GeometricField<Type, fvPatchField, volMesh>>& tfromVf,
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meshToMesh0::order ord
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) const
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{
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interpolateInternalField(toF, tfromVf(), ord);
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tfromVf.clear();
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}
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template<class Type>
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void Foam::meshToMesh0::interpolate
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(
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GeometricField<Type, fvPatchField, volMesh>& toVf,
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const GeometricField<Type, fvPatchField, volMesh>& fromVf,
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meshToMesh0::order ord
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) const
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{
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interpolateInternalField(toVf, fromVf, ord);
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typename GeometricField<Type, fvPatchField, volMesh>::
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Boundary& toVfBf = toVf.boundaryFieldRef();
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forAll(toMesh_.boundaryMesh(), patchi)
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{
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const fvPatch& toPatch = toMesh_.boundary()[patchi];
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if (cuttingPatches_.found(toPatch.name()))
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{
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switch(ord)
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{
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case MAP:
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{
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mapField
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(
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toVfBf[patchi],
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fromVf,
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boundaryAddressing_[patchi]
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);
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break;
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}
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case INTERPOLATE:
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{
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interpolateField
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(
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toVfBf[patchi],
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fromVf,
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boundaryAddressing_[patchi],
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toPatch.Cf()
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);
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break;
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}
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case CELL_POINT_INTERPOLATE:
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{
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interpolateField
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(
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toVfBf[patchi],
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fromVf,
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boundaryAddressing_[patchi],
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toPatch.Cf()
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);
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break;
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}
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case CELL_VOLUME_WEIGHT:
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{
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break;
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}
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default:
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FatalErrorInFunction
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<< "unknown interpolation scheme " << ord
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<< exit(FatalError);
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}
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if (isA<mixedFvPatchField<Type>>(toVfBf[patchi]))
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{
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refCast<mixedFvPatchField<Type>>
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(
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toVfBf[patchi]
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).refValue() = toVfBf[patchi];
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}
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}
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else if
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(
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patchMap_.found(toPatch.name())
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&& fromMeshPatches_.found(patchMap_.find(toPatch.name())())
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)
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{
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mapField
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(
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toVfBf[patchi],
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fromVf.boundaryField()
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[
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fromMeshPatches_.find(patchMap_.find(toPatch.name())())()
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],
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boundaryAddressing_[patchi]
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);
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}
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}
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}
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template<class Type>
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void Foam::meshToMesh0::interpolate
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(
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GeometricField<Type, fvPatchField, volMesh>& toVf,
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const tmp<GeometricField<Type, fvPatchField, volMesh>>& tfromVf,
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meshToMesh0::order ord
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) const
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{
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interpolate(toVf, tfromVf(), ord);
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tfromVf.clear();
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}
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template<class Type>
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Foam::tmp<Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh>>
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Foam::meshToMesh0::interpolate
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(
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const GeometricField<Type, fvPatchField, volMesh>& fromVf,
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meshToMesh0::order ord
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) const
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{
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// Create and map the internal-field values
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Field<Type> internalField(toMesh_.nCells());
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interpolateInternalField(internalField, fromVf, ord);
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// check whether both meshes have got the same number
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// of boundary patches
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if (fromMesh_.boundary().size() != toMesh_.boundary().size())
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{
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FatalErrorInFunction
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<< "Incompatible meshes: different number of boundaries, "
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"only internal field may be interpolated"
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<< exit(FatalError);
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}
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// Create and map the patch field values
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PtrList<fvPatchField<Type>> patchFields
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(
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boundaryAddressing_.size()
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);
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forAll(boundaryAddressing_, patchi)
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{
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patchFields.set
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(
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patchi,
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fvPatchField<Type>::New
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(
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fromVf.boundaryField()[patchi],
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toMesh_.boundary()[patchi],
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DimensionedField<Type, volMesh>::null(),
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patchFieldInterpolator
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(
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boundaryAddressing_[patchi]
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)
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)
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);
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}
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// Create the complete field from the pieces
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tmp<GeometricField<Type, fvPatchField, volMesh>> ttoF
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(
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new GeometricField<Type, fvPatchField, volMesh>
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(
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IOobject
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(
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"interpolated(" + fromVf.name() + ')',
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toMesh_.time().timeName(),
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toMesh_,
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IOobject::NO_READ,
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IOobject::NO_WRITE,
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false
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),
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toMesh_,
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fromVf.dimensions(),
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internalField,
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patchFields
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)
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);
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return ttoF;
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}
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template<class Type>
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Foam::tmp<Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh>>
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Foam::meshToMesh0::interpolate
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(
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const tmp<GeometricField<Type, fvPatchField, volMesh>>& tfromVf,
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meshToMesh0::order ord
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) const
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{
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tmp<GeometricField<Type, fvPatchField, volMesh>> tint =
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interpolate(tfromVf(), ord);
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tfromVf.clear();
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return tint;
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}
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// ************************************************************************* //
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Block a user