applications/utilities/preProcessing/faceAgglomerate/faceAgglomerate.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   4    \\    /   O peration     |
   5     \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
   6      \\/     M anipulation  |
   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of OpenFOAM.
  10
  11     OpenFOAM is free software: you can redistribute it and/or modify it
  12     under the terms of the GNU General Public License as published by
  13     the Free Software Foundation, either version 3 of the License, or
  14     (at your option) any later version.
  15
  16     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
  17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19     for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 Application
  25     faceAgglomerate
  26
  27 Description
  28
  29     Agglomerate boundary faces using the pairPatchAgglomeration algorithm.
  30     It writes a map from the fine to coarse grid.
  31
  32 \*---------------------------------------------------------------------------*/
  33
  34 #include "argList.H"
  35 #include "fvMesh.H"
  36 #include "Time.H"
  37 #include "volFields.H"
  38 #include "CompactListList.H"
  39 #include "unitConversion.H"
  40 #include "pairPatchAgglomeration.H"
  41 #include "labelListIOList.H"
  42 #include "syncTools.H"
  43
  44 using namespace Foam;
  45
  46 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  47
  48 int main(int argc, char *argv[])
  49 {
  50     #include "addRegionOption.H"
  51     argList::addOption
  52     (
  53         "dict",
  54         "word",
  55         "name of dictionary to provide patch agglomeration controls"
  56     );
  57     #include "setRootCase.H"
  58     #include "createTime.H"
  59     #include "createNamedMesh.H"
  60
  61     word agglomDictName
  62     (
  63         args.optionLookupOrDefault<word>("dict", "faceAgglomerateDict")
  64     );
  65
  66     const polyBoundaryMesh& patches = mesh.boundaryMesh();
  67
  68     labelListIOList finalAgglom
  69     (
  70         IOobject
  71         (
  72             "finalAgglom",
  73             mesh.facesInstance(),
  74             mesh,
  75             IOobject::NO_READ,
  76             IOobject::NO_WRITE,
  77             false
  78         ),
  79         patches.size()
  80     );
  81
  82
  83     // Read control dictionary
  84     IOdictionary agglomDict
  85     (
  86         IOobject
  87         (
  88             agglomDictName,
  89             runTime.constant(),
  90             mesh,
  91             IOobject::MUST_READ,
  92             IOobject::NO_WRITE
  93         )
  94     );
  95
  96     bool writeAgglom = readBool(agglomDict.lookup("writeFacesAgglomeration"));
  97
  98     const polyBoundaryMesh& boundary = mesh.boundaryMesh();
  99
 100     forAll(boundary, patchId)
 101     {
 102         const polyPatch& pp = boundary[patchId];
 103
 104         label patchI = pp.index();
 105         finalAgglom[patchI].setSize(pp.size(), 0);
 106
 107         if (!pp.coupled())
 108         {
 109             if (agglomDict.found(pp.name()))
 110             {
 111                 Info << "\nAgglomerating patch : " << pp.name() << endl;
 112                 pairPatchAgglomeration agglomObject
 113                 (
 114                     pp,
 115                     agglomDict.subDict(pp.name())
 116                 );
 117
 118                 agglomObject.agglomerate();
 119
 120                 finalAgglom[patchI] =
 121                     agglomObject.restrictTopBottomAddressing();
 122
 123             }
 124             else
 125             {
 126                 FatalErrorIn(args.executable())
 127                     << "Patch " << pp.name() << " not found in dictionary: "
 128                     << agglomDict.name() << exit(FatalError);
 129             }
 130         }
 131     }
 132
 133     // Sync agglomeration across coupled patches
 134     labelList nbrAgglom(mesh.nFaces() - mesh.nInternalFaces(), -1);
 135
 136     forAll(boundary, patchId)
 137     {
 138         const polyPatch& pp = boundary[patchId];
 139         if (pp.coupled())
 140         {
 141             finalAgglom[patchId] = identity(pp.size());
 142             forAll(pp, i)
 143             {
 144                 nbrAgglom[pp.start() - mesh.nInternalFaces() + i] =
 145                     finalAgglom[patchId][i];
 146             }
 147         }
 148     }
 149
 150     syncTools::swapBoundaryFaceList(mesh, nbrAgglom);
 151     forAll(boundary, patchId)
 152     {
 153         const polyPatch& pp = boundary[patchId];
 154         if (pp.coupled() && !refCast<const coupledPolyPatch>(pp).owner())
 155         {
 156             forAll(pp, i)
 157             {
 158                 finalAgglom[patchId][i] =
 159                     nbrAgglom[pp.start() - mesh.nInternalFaces() + i];
 160             }
 161         }
 162     }
 163
 164     finalAgglom.write();
 165
 166     if (writeAgglom)
 167     {
 168         volScalarField facesAgglomeration
 169         (
 170             IOobject
 171             (
 172                 "facesAgglomeration",
 173                 mesh.time().timeName(),
 174                 mesh,
 175                 IOobject::NO_READ,
 176                 IOobject::NO_WRITE
 177             ),
 178             mesh,
 179             dimensionedScalar("facesAgglomeration", dimless, 0)
 180         );
 181
 182         forAll(boundary, patchId)
 183         {
 184
 185             fvPatchScalarField& bFacesAgglomeration =
 186                 facesAgglomeration.boundaryField()[patchId];
 187
 188             forAll(bFacesAgglomeration, j)
 189             {
 190                 bFacesAgglomeration[j] = finalAgglom[patchId][j];
 191             }
 192         }
 193
 194         Info << "\nWriting  facesAgglomeration" << endl;
 195         facesAgglomeration.write();
 196     }
 197
 198     Info<< "End\n" << endl;
 199     return 0;
 200 }
 201
 202
 203 // ************************************************************************* //