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) 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 Application
  25     nonNewtonianIcoFoam
  26
  27 Description
  28     Transient solver for incompressible, laminar flow of non-Newtonian fluids.
  29
  30 \*---------------------------------------------------------------------------*/
  31
  32 #include "fvCFD.H"
  33 #include "singlePhaseTransportModel.H"
  34
  35 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  36
  37 int main(int argc, char *argv[])
  38 {
  39     #include "setRootCase.H"
  40
  41     #include "createTime.H"
  42     #include "createMeshNoClear.H"
  43     #include "createFields.H"
  44     #include "initContinuityErrs.H"
  45
  46     // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  47
  48     Info<< "\nStarting time loop\n" << endl;
  49
  50     while (runTime.loop())
  51     {
  52         Info<< "Time = " << runTime.timeName() << nl << endl;
  53
  54         #include "readPISOControls.H"
  55         #include "CourantNo.H"
  56
  57         fluid.correct();
  58
  59         fvVectorMatrix UEqn
  60         (
  61             fvm::ddt(U)
  62           + fvm::div(phi, U)
  63           - fvm::laplacian(fluid.nu(), U)
  64         );
  65
  66         solve(UEqn == -fvc::grad(p));
  67
  68         // --- PISO loop
  69
  70         for (int corr=0; corr<nCorr; corr++)
  71         {
  72             volScalarField rAU(1.0/UEqn.A());
  73
  74             U = rAU*UEqn.H();
  75             phi = (fvc::interpolate(U) & mesh.Sf())
  76                 + fvc::ddtPhiCorr(rAU, U, phi);
  77
  78             adjustPhi(phi, U, p);
  79
  80             for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
  81             {
  82                 fvScalarMatrix pEqn
  83                 (
  84                     fvm::laplacian(rAU, p) == fvc::div(phi)
  85                 );
  86
  87                 pEqn.setReference(pRefCell, pRefValue);
  88                 pEqn.solve();
  89
  90                 if (nonOrth == nNonOrthCorr)
  91                 {
  92                     phi -= pEqn.flux();
  93                 }
  94             }
  95
  96             #include "continuityErrs.H"
  97
  98             U -= rAU*fvc::grad(p);
  99             U.correctBoundaryConditions();
 100         }
 101
 102         runTime.write();
 103
 104         Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
 105             << "  ClockTime = " << runTime.elapsedClockTime() << " s"
 106             << nl << endl;
 107     }
 108
 109     Info<< "End\n" << endl;
 110
 111     return 0;
 112 }
 113
 114
 115 // ************************************************************************* //