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) 1991-2009 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 "singlePhaseTransportModel.H"
  35
  36 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  37
  38 int main(int argc, char *argv[])
  39 {
  40     #include "setRootCase.H"
  41
  42     #include "createTime.H"
  43     #include "createMeshNoClear.H"
  44     #include "createFields.H"
  45     #include "initContinuityErrs.H"
  46
  47     // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  48
  49     Info<< "\nStarting time loop\n" << endl;
  50
  51     while (runTime.loop())
  52     {
  53         Info<< "Time = " << runTime.timeName() << nl << endl;
  54
  55         #include "readPISOControls.H"
  56         #include "CourantNo.H"
  57
  58         fluid.correct();
  59
  60         fvVectorMatrix UEqn
  61         (
  62             fvm::ddt(U)
  63           + fvm::div(phi, U)
  64           - fvm::laplacian(fluid.nu(), U)
  65         );
  66
  67         solve(UEqn == -fvc::grad(p));
  68
  69         // --- PISO loop
  70
  71         for (int corr=0; corr<nCorr; corr++)
  72         {
  73             volScalarField rUA = 1.0/UEqn.A();
  74
  75             U = rUA*UEqn.H();
  76             phi = (fvc::interpolate(U) & mesh.Sf())
  77                 + fvc::ddtPhiCorr(rUA, U, phi);
  78
  79             adjustPhi(phi, U, p);
  80
  81             for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
  82             {
  83                 fvScalarMatrix pEqn
  84                 (
  85                     fvm::laplacian(rUA, p) == fvc::div(phi)
  86                 );
  87
  88                 pEqn.setReference(pRefCell, pRefValue);
  89                 pEqn.solve();
  90
  91                 if (nonOrth == nNonOrthCorr)
  92                 {
  93                     phi -= pEqn.flux();
  94                 }
  95             }
  96
  97             #include "continuityErrs.H"
  98
  99             U -= rUA*fvc::grad(p);
 100             U.correctBoundaryConditions();
 101         }
 102
 103         runTime.write();
 104
 105         Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
 106             << "  ClockTime = " << runTime.elapsedClockTime() << " s"
 107             << nl << endl;
 108     }
 109
 110     Info<< "End\n" << endl;
 111
 112     return 0;
 113 }
 114
 115
 116 // ************************************************************************* //