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

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
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   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 the
  13     Free Software Foundation; either version 2 of the License, or (at your
  14     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, write to the Free Software Foundation,
  23     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  24
  25 Application
  26     wallShearStress
  27
  28 Description
  29     Calculates and writes the wall shear stress, for the specified times.
  30
  31 \*---------------------------------------------------------------------------*/
  32
  33 #include "fvCFD.H"
  34 #include "incompressible/singlePhaseTransportModel/singlePhaseTransportModel.H"
  35 #include "RASModel.H"
  36
  37 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  38
  39 int main(int argc, char *argv[])
  40 {
  41     timeSelector::addOptions();
  42     #include "setRootCase.H"
  43     #include "createTime.H"
  44     instantList timeDirs = timeSelector::select0(runTime, args);
  45     #include "createMesh.H"
  46
  47     forAll(timeDirs, timeI)
  48     {
  49         runTime.setTime(timeDirs[timeI], timeI);
  50         Info<< "Time = " << runTime.timeName() << endl;
  51         mesh.readUpdate();
  52
  53         #include "createFields.H"
  54
  55         volSymmTensorField Reff(RASModel->devReff());
  56
  57         volVectorField wallShearStress
  58         (
  59             IOobject
  60             (
  61                 "wallShearStress",
  62                 runTime.timeName(),
  63                 mesh,
  64                 IOobject::NO_READ,
  65                 IOobject::AUTO_WRITE
  66             ),
  67             mesh,
  68             dimensionedVector
  69             (
  70                 "wallShearStress",
  71                 Reff.dimensions(),
  72                 vector::zero
  73             )
  74         );
  75
  76         forAll(wallShearStress.boundaryField(), patchi)
  77         {
  78             wallShearStress.boundaryField()[patchi] =
  79             (
  80                 -mesh.Sf().boundaryField()[patchi]
  81                 /mesh.magSf().boundaryField()[patchi]
  82             ) & Reff.boundaryField()[patchi];
  83         }
  84
  85         wallShearStress.write();
  86     }
  87
  88     Info<< "End" << endl;
  89
  90     return 0;
  91 }
  92
  93
  94 // ************************************************************************* //