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) 2011-2011 OpenCFD Ltd.
   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.size() > 0 && !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                 agglomObject.agglomerate();
 118                 finalAgglom[patchI] =
 119                     agglomObject.restrictTopBottomAddressing();
 120             }
 121             else
 122             {
 123                 FatalErrorIn(args.executable())
 124                     << "Patch " << pp.name() << " not found in dictionary: "
 125                     << agglomDict.name() << exit(FatalError);
 126             }
 127         }
 128     }
 129
 130     // Sync agglomeration across coupled patches
 131     labelList nbrAgglom(mesh.nFaces() - mesh.nInternalFaces(), -1);
 132
 133     forAll(boundary, patchId)
 134     {
 135         const polyPatch& pp = boundary[patchId];
 136         if (pp.coupled())
 137         {
 138             finalAgglom[patchId] = identity(pp.size());
 139             forAll(pp, i)
 140             {
 141                 nbrAgglom[pp.start() - mesh.nInternalFaces() + i] =
 142                     finalAgglom[patchId][i];
 143             }
 144         }
 145     }
 146
 147     syncTools::swapBoundaryFaceList(mesh, nbrAgglom);
 148     forAll(boundary, patchId)
 149     {
 150         const polyPatch& pp = boundary[patchId];
 151         if (pp.coupled() && !refCast<const coupledPolyPatch>(pp).owner())
 152         {
 153             forAll(pp, i)
 154             {
 155                 finalAgglom[patchId][i] =
 156                     nbrAgglom[pp.start() - mesh.nInternalFaces() + i];
 157             }
 158         }
 159     }
 160
 161     finalAgglom.write();
 162
 163     if (writeAgglom)
 164     {
 165         volScalarField facesAgglomeration
 166         (
 167             IOobject
 168             (
 169                 "facesAgglomeration",
 170                 mesh.time().timeName(),
 171                 mesh,
 172                 IOobject::NO_READ,
 173                 IOobject::NO_WRITE
 174             ),
 175             mesh,
 176             dimensionedScalar("facesAgglomeration", dimless, 0)
 177         );
 178
 179         forAll(boundary, patchId)
 180         {
 181
 182             fvPatchScalarField& bFacesAgglomeration =
 183                 facesAgglomeration.boundaryField()[patchId];
 184
 185             forAll(bFacesAgglomeration, j)
 186             {
 187                 bFacesAgglomeration[j] = finalAgglom[patchId][j];
 188             }
 189         }
 190
 191         Info << "\nWriting  facesAgglomeration" << endl;
 192         facesAgglomeration.write();
 193     }
 194
 195     Info<< "End\n" << endl;
 196     return 0;
 197 }
 198
 199
 200 // ************************************************************************* //