applications/utilities/postProcessing/wall/wallShearStress/wallShearStress.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   4    \\    /   O peration     |
   5     \\  /    A nd           | Copyright (C) 2004-2010 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     wallShearStress
  26
  27 Description
  28     Calculates and writes the wall shear stress, for the specified times.
  29
  30 \*---------------------------------------------------------------------------*/
  31
  32 #include "fvCFD.H"
  33 #include "incompressible/singlePhaseTransportModel/singlePhaseTransportModel.H"
  34 #include "RASModel.H"
  35
  36 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  37
  38 int main(int argc, char *argv[])
  39 {
  40     timeSelector::addOptions();
  41     #include "setRootCase.H"
  42     #include "createTime.H"
  43     instantList timeDirs = timeSelector::select0(runTime, args);
  44     #include "createMesh.H"
  45
  46     forAll(timeDirs, timeI)
  47     {
  48         runTime.setTime(timeDirs[timeI], timeI);
  49         Info<< "Time = " << runTime.timeName() << endl;
  50         mesh.readUpdate();
  51
  52         #include "createFields.H"
  53
  54         volSymmTensorField Reff(RASModel->devReff());
  55
  56         volVectorField wallShearStress
  57         (
  58             IOobject
  59             (
  60                 "wallShearStress",
  61                 runTime.timeName(),
  62                 mesh,
  63                 IOobject::NO_READ,
  64                 IOobject::AUTO_WRITE
  65             ),
  66             mesh,
  67             dimensionedVector
  68             (
  69                 "wallShearStress",
  70                 Reff.dimensions(),
  71                 vector::zero
  72             )
  73         );
  74
  75         forAll(wallShearStress.boundaryField(), patchi)
  76         {
  77             wallShearStress.boundaryField()[patchi] =
  78             (
  79                 -mesh.Sf().boundaryField()[patchi]
  80                 /mesh.magSf().boundaryField()[patchi]
  81             ) & Reff.boundaryField()[patchi];
  82         }
  83
  84         wallShearStress.write();
  85     }
  86
  87     Info<< "End" << endl;
  88
  89     return 0;
  90 }
  91
  92
  93 // ************************************************************************* //