applications/solvers/incompressible/nonNewtonianIcoFoam/nonNewtonianIcoFoam.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   4    \\    /   O peration     |
   5     \\  /    A nd           | Copyright (C) 1991-2008 OpenCFD Ltd.
   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 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     nonNewtonianIcoFoam
  27
  28 Description
  29     Transient solver for incompressible, laminar flow of non-Newtonian fluids.
  30
  31 \*---------------------------------------------------------------------------*/
  32
  33 #include "fvCFD.H"
  34 #include "incompressible/singlePhaseTransportModel/singlePhaseTransportModel.H"
  35
  36 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  37
  38 int main(int argc, char *argv[])
  39 {
  40
  41 #   include "setRootCase.H"
  42
  43 #   include "createTime.H"
  44 #   include "createMeshNoClear.H"
  45 #   include "createFields.H"
  46 #   include "initContinuityErrs.H"
  47
  48 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  49
  50     Info<< "\nStarting time loop\n" << endl;
  51
  52     for (runTime++; !runTime.end(); runTime++)
  53     {
  54         Info<< "Time = " << runTime.timeName() << nl << endl;
  55
  56 #       include "readPISOControls.H"
  57 #       include "CourantNo.H"
  58
  59         fluid.correct();
  60
  61         fvVectorMatrix UEqn
  62         (
  63             fvm::ddt(U)
  64           + fvm::div(phi, U)
  65           - fvm::laplacian(fluid.nu(), U)
  66         );
  67
  68         solve(UEqn == -fvc::grad(p));
  69
  70         // --- PISO loop
  71
  72         for (int corr=0; corr<nCorr; corr++)
  73         {
  74             volScalarField rUA = 1.0/UEqn.A();
  75
  76             U = rUA*UEqn.H();
  77             phi = (fvc::interpolate(U) & mesh.Sf())
  78                 + fvc::ddtPhiCorr(rUA, U, phi);
  79
  80             adjustPhi(phi, U, p);
  81
  82             for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
  83             {
  84                 fvScalarMatrix pEqn
  85                 (
  86                     fvm::laplacian(rUA, p) == fvc::div(phi)
  87                 );
  88
  89                 pEqn.setReference(pRefCell, pRefValue);
  90                 pEqn.solve();
  91
  92                 if (nonOrth == nNonOrthCorr)
  93                 {
  94                     phi -= pEqn.flux();
  95                 }
  96             }
  97
  98 #           include "continuityErrs.H"
  99
 100             U -= rUA*fvc::grad(p);
 101             U.correctBoundaryConditions();
 102         }
 103
 104         runTime.write();
 105
 106         Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
 107             << "  ClockTime = " << runTime.elapsedClockTime() << " s"
 108             << nl << endl;
 109     }
 110
 111     Info<< "End\n" << endl;
 112
 113     return(0);
 114 }
 115
 116
 117 // ************************************************************************* //