src/tetDecompositionMotionSolver/motionDiffs/distortionEnergy/distortionEnergyDiff.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 Description
  26     Non-orthogonality-based motion diffusivity.
  27
  28 \*---------------------------------------------------------------------------*/
  29
  30 #include "distortionEnergyDiff.H"
  31 #include "addToRunTimeSelectionTable.H"
  32 #include "elementFields.H"
  33 #include "cellQuality.H"
  34 #include "tetFec.H"
  35
  36 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
  37
  38 namespace Foam
  39 {
  40     defineTypeNameAndDebug(distortionEnergyDiff, 0);
  41     addToRunTimeSelectionTable(motionDiff, distortionEnergyDiff, dictionary);
  42 }
  43
  44 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
  45
  46 // Construct from components
  47 Foam::distortionEnergyDiff::distortionEnergyDiff
  48 (
  49     const tetDecompositionMotionSolver& mSolver
  50 )
  51 :
  52     motionDiff(mSolver),
  53     motionGamma_
  54     (
  55         IOobject
  56         (
  57             "motionGamma",
  58             tetMesh().time().timeName(),
  59             tetMesh()(),
  60             IOobject::NO_READ,
  61             IOobject::NO_WRITE
  62         ),
  63         tetMesh(),
  64         dimensionedScalar("1.0", dimless, 1.0)
  65     )
  66 {
  67     exponent_ = readInt(mSolver.lookup("diffusivityExponent"));
  68
  69     Info << "Value of exponent for distortion energy based motion diffusivity: "
  70         << exponent_ << endl;
  71
  72
  73     mSolver.storeTotDisplacement();
  74
  75     correct();
  76 }
  77
  78
  79 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
  80
  81 Foam::distortionEnergyDiff::~distortionEnergyDiff()
  82 {}
  83
  84
  85 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
  86
  87 void Foam::distortionEnergyDiff::correct()
  88 {
  89     motionGamma_.internalField() =
  90         pow(mSolver().totDistortionEnergy()().internalField(), exponent_)
  91       + SMALL;
  92
  93     motionGamma_.internalField() /= max(motionGamma_.internalField());
  94 }
  95
  96 // ************************************************************************* //