src/turbulenceModels/RAS/compressible/kOmegaSST/kOmegaWallViscosityI.H

   1 /*---------------------------------------------------------------------------*\
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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 Global
  26     kOmegaWallViscosity
  27
  28 Description
  29     Calculate wall viscosity from wall-functions.
  30
  31 \*---------------------------------------------------------------------------*/
  32
  33 {
  34     scalar Cmu25 = pow(Cmu_.value(), 0.25);
  35
  36     const fvPatchList& patches = mesh_.boundary();
  37
  38     forAll(patches, patchi)
  39     {
  40         const fvPatch& curPatch = patches[patchi];
  41
  42         if (isType<wallFvPatch>(curPatch))
  43         {
  44             const scalarField& rhow = rho_.boundaryField()[patchi];
  45
  46             const scalarField& muw = mu().boundaryField()[patchi];
  47             scalarField& mutw = mut_.boundaryField()[patchi];
  48
  49             forAll(curPatch, facei)
  50             {
  51                 label faceCelli = curPatch.faceCells()[facei];
  52
  53                 scalar yPlus =
  54                     Cmu25*y_[faceCelli]
  55                    *sqrt(k_[faceCelli])/(muw[facei]/rhow[facei]);
  56
  57                 if (yPlus > yPlusLam_)
  58                 {
  59                     mutw[facei] =
  60                          muw[facei]
  61                         *(yPlus*kappa_.value()/log(E_.value()*yPlus) - 1);
  62                 }
  63                 else
  64                 {
  65                     mutw[facei] = 0.0;
  66                 }
  67             }
  68         }
  69     }
  70 }
  71
  72
  73 // ************************************************************************* //