src/finiteVolume/fvMesh/wallDist/nearWallDist.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 \*---------------------------------------------------------------------------*/
  25
  26 #include "nearWallDist.H"
  27 #include "fvMesh.H"
  28 #include "cellDistFuncs.H"
  29 #include "wallFvPatch.H"
  30 #include "surfaceFields.H"
  31
  32 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
  33
  34 void Foam::nearWallDist::doAll()
  35 {
  36     cellDistFuncs wallUtils(mesh_);
  37
  38     // Get patch ids of walls
  39     labelHashSet wallPatchIDs(wallUtils.getPatchIDs<wallPolyPatch>());
  40
  41     // Size neighbours array for maximum possible
  42
  43     labelList neighbours(wallUtils.maxPatchSize(wallPatchIDs));
  44
  45
  46     // Correct all cells with face on wall
  47
  48     const volVectorField& cellCentres = mesh_.C();
  49
  50     forAll(mesh_.boundary(), patchI)
  51     {
  52         fvPatchScalarField& ypatch = operator[](patchI);
  53
  54         const fvPatch& patch = mesh_.boundary()[patchI];
  55
  56         if (isA<wallFvPatch>(patch))
  57         {
  58             const polyPatch& pPatch = patch.patch();
  59
  60             const labelUList& faceCells = patch.faceCells();
  61
  62             // Check cells with face on wall
  63             forAll(patch, patchFaceI)
  64             {
  65                 label nNeighbours = wallUtils.getPointNeighbours
  66                 (
  67                     pPatch,
  68                     patchFaceI,
  69                     neighbours
  70                 );
  71
  72                 label minFaceI = -1;
  73
  74                 ypatch[patchFaceI] = wallUtils.smallestDist
  75                 (
  76                     cellCentres[faceCells[patchFaceI]],
  77                     pPatch,
  78                     nNeighbours,
  79                     neighbours,
  80                     minFaceI
  81                 );
  82             }
  83         }
  84         else
  85         {
  86             ypatch = 0.0;
  87         }
  88     }
  89 }
  90
  91
  92 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
  93
  94 Foam::nearWallDist::nearWallDist(const Foam::fvMesh& mesh)
  95 :
  96     volScalarField::GeometricBoundaryField
  97     (
  98         mesh.boundary(),
  99         mesh.V(),           // Dummy internal field,
 100         calculatedFvPatchScalarField::typeName
 101     ),
 102     mesh_(mesh)
 103 {
 104     doAll();
 105 }
 106
 107
 108 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 109
 110 Foam::nearWallDist::~nearWallDist()
 111 {}
 112
 113
 114 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 115
 116 void Foam::nearWallDist::correct()
 117 {
 118     if (mesh_.changing())
 119     {
 120         // Update size of GeometricBoundaryField
 121         forAll(mesh_.boundary(), patchI)
 122         {
 123             operator[](patchI).setSize(mesh_.boundary()[patchI].size());
 124         }
 125     }
 126
 127     doAll();
 128 }
 129
 130
 131 // ************************************************************************* //