src/fvMotionSolver/motionDiffusivity/motionDirectional/motionDirectionalDiffusivity.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 \*---------------------------------------------------------------------------*/
  25
  26 #include "motionDirectionalDiffusivity.H"
  27 #include "surfaceInterpolate.H"
  28 #include "zeroGradientFvPatchFields.H"
  29 #include "addToRunTimeSelectionTable.H"
  30
  31 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
  32
  33 namespace Foam
  34 {
  35     defineTypeNameAndDebug(motionDirectionalDiffusivity, 0);
  36
  37     addToRunTimeSelectionTable
  38     (
  39         motionDiffusivity,
  40         motionDirectionalDiffusivity,
  41         Istream
  42     );
  43 }
  44
  45
  46 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
  47
  48 Foam::motionDirectionalDiffusivity::motionDirectionalDiffusivity
  49 (
  50     const fvMotionSolver& mSolver,
  51     Istream& mdData
  52 )
  53 :
  54     uniformDiffusivity(mSolver, mdData),
  55     diffusivityVector_(mdData)
  56 {}
  57
  58
  59 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
  60
  61 Foam::motionDirectionalDiffusivity::~motionDirectionalDiffusivity()
  62 {}
  63
  64
  65 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
  66
  67 void Foam::motionDirectionalDiffusivity::correct()
  68 {
  69     const fvMesh& mesh = mSolver().mesh();
  70
  71     static bool first = true;
  72
  73     if (!first)
  74     {
  75         const volVectorField& cellMotionU =
  76             mesh.lookupObject<volVectorField>("cellMotionU");
  77
  78         volVectorField D
  79         (
  80             IOobject
  81             (
  82                 "D",
  83                 mesh.time().timeName(),
  84                 mesh
  85             ),
  86             diffusivityVector_.y()*vector::one
  87           + (diffusivityVector_.x() - diffusivityVector_.y())*cellMotionU
  88            /(mag(cellMotionU) + dimensionedScalar("small", dimVelocity, SMALL)),
  89             zeroGradientFvPatchVectorField::typeName
  90         );
  91         D.correctBoundaryConditions();
  92
  93         const surfaceVectorField n(mesh.Sf()/mesh.magSf());
  94         faceDiffusivity_ == (n & cmptMultiply(fvc::interpolate(D), n));
  95     }
  96     else
  97     {
  98         first = false;
  99         const_cast<fvMotionSolver&>(mSolver()).solve();
 100         correct();
 101     }
 102 }
 103
 104
 105 // ************************************************************************* //