src/turbulenceModels/incompressible/RAS/include/wallNonlinearViscosityI.H

   1 /*---------------------------------------------------------------------------*\
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   8 License
   9     This file is part of foam-extend.
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  12     under the terms of the GNU General Public License as published by the
  13     Free Software Foundation, either version 3 of the License, or (at your
  14     option) any later version.
  15
  16     foam-extend is distributed in the hope that it will be useful, but
  17     WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19     General Public License for more details.
  20
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  22     along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 Global
  25     wallNonlinearViscosity
  26
  27 Description
  28     Calculate wall viscosity for non-linear models
  29
  30 \*---------------------------------------------------------------------------*/
  31
  32 {
  33     const fvPatchList& patches = mesh_.boundary();
  34
  35     const scalar yPlusLam = this->yPlusLam(kappa_.value(), E_.value());
  36
  37     forAll(patches, patchi)
  38     {
  39         const fvPatch& curPatch = patches[patchi];
  40
  41         if (curPatch.isWall())
  42         {
  43             const scalarField& nuw = nu().boundaryField()[patchi];
  44             scalarField& nutw = nut_.boundaryField()[patchi];
  45
  46             forAll(curPatch, facei)
  47             {
  48                 label faceCelli = curPatch.faceCells()[facei];
  49
  50                 //- Using local Cmu
  51                 scalar Cmu25 = pow(Cmu_[faceCelli], 0.25);
  52
  53                 scalar yPlus =
  54                     Cmu25*y_[patchi][facei]*sqrt(k_[faceCelli])/nuw[facei];
  55
  56                 if (yPlus > yPlusLam)
  57                 {
  58                     nutw[facei] =
  59                         nuw[facei]
  60                        *(yPlus*kappa_.value()/log(E_.value()*yPlus) - 1);
  61                 }
  62                 else
  63                 {
  64                     nutw[facei] = 0.0;
  65                 }
  66             }
  67         }
  68     }
  69 }
  70
  71
  72 // ************************************************************************* //