applications/utilities/postProcessing/wall/yPlusLES/yPlusLES.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     yPlusLES
  26
  27 Description
  28     Calculates and reports yPlus for all wall patches, for the specified times.
  29
  30 \*---------------------------------------------------------------------------*/
  31
  32 #include "fvCFD.H"
  33 #include "incompressible/singlePhaseTransportModel/singlePhaseTransportModel.H"
  34 #include "LESModel.H"
  35 #include "nearWallDist.H"
  36 #include "wallDist.H"
  37
  38 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  39
  40 int main(int argc, char *argv[])
  41 {
  42     timeSelector::addOptions();
  43     #include "setRootCase.H"
  44 #   include "createTime.H"
  45     instantList timeDirs = timeSelector::select0(runTime, args);
  46 #   include "createMesh.H"
  47
  48     forAll(timeDirs, timeI)
  49     {
  50         runTime.setTime(timeDirs[timeI], timeI);
  51         Info<< "Time = " << runTime.timeName() << endl;
  52         fvMesh::readUpdateState state = mesh.readUpdate();
  53
  54         // Wall distance
  55         if (timeI == 0 || state != fvMesh::UNCHANGED)
  56         {
  57             Info<< "Calculating wall distance\n" << endl;
  58             wallDist y(mesh, true);
  59             Info<< "Writing wall distance to field "
  60                 << y.name() << nl << endl;
  61             y.write();
  62         }
  63
  64
  65         volScalarField yPlus
  66         (
  67             IOobject
  68             (
  69                 "yPlus",
  70                 runTime.timeName(),
  71                 mesh,
  72                 IOobject::NO_READ,
  73                 IOobject::NO_WRITE
  74             ),
  75             mesh,
  76             dimensionedScalar("yPlus", dimless, 0.0)
  77         );
  78
  79         Info<< "Reading field U\n" << endl;
  80         volVectorField U
  81         (
  82             IOobject
  83             (
  84                 "U",
  85                 runTime.timeName(),
  86                 mesh,
  87                 IOobject::MUST_READ,
  88                 IOobject::NO_WRITE
  89             ),
  90             mesh
  91         );
  92
  93 #       include "createPhi.H"
  94
  95         singlePhaseTransportModel laminarTransport(U, phi);
  96
  97         autoPtr<incompressible::LESModel> sgsModel
  98         (
  99             incompressible::LESModel::New(U, phi, laminarTransport)
 100         );
 101
 102         volScalarField::GeometricBoundaryField d = nearWallDist(mesh).y();
 103         volScalarField nuEff(sgsModel->nuEff());
 104
 105         const fvPatchList& patches = mesh.boundary();
 106
 107         const volScalarField nuLam(sgsModel->nu());
 108
 109         forAll(patches, patchi)
 110         {
 111             const fvPatch& currPatch = patches[patchi];
 112
 113             if (isA<wallFvPatch>(currPatch))
 114             {
 115                 yPlus.boundaryField()[patchi] =
 116                     d[patchi]
 117                    *sqrt
 118                     (
 119                         nuEff.boundaryField()[patchi]
 120                        *mag(U.boundaryField()[patchi].snGrad())
 121                     )
 122                    /nuLam.boundaryField()[patchi];
 123                 const scalarField& Yp = yPlus.boundaryField()[patchi];
 124
 125                 Info<< "Patch " << patchi
 126                     << " named " << currPatch.name()
 127                     << " y+ : min: " << min(Yp) << " max: " << max(Yp)
 128                     << " average: " << average(Yp) << nl << endl;
 129             }
 130         }
 131
 132         Info<< "Writing yPlus to field "
 133             << yPlus.name() << nl << endl;
 134
 135         yPlus.write();
 136     }
 137
 138     Info<< "End\n" << endl;
 139
 140     return 0;
 141 }
 142
 143
 144 // ************************************************************************* //