Merge branch 'master' of ssh://git.code.sf.net/p/foam-extend/foam-extend-3.2
[foam-extend-3.2.git] / applications / solvers / incompressible / icoFoam / icoFoam.C
blob164f5f6e9a4d407d51e88b9bd1317e98d8e9caaa
1 /*---------------------------------------------------------------------------*\
2   =========                 |
3   \\      /  F ield         | foam-extend: Open Source CFD
4    \\    /   O peration     | Version:     3.2
5     \\  /    A nd           | Web:         http://www.foam-extend.org
6      \\/     M anipulation  | For copyright notice see file Copyright
7 -------------------------------------------------------------------------------
8 License
9     This file is part of foam-extend.
11     foam-extend 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 3 of the License, or (at your
14     option) any later version.
16     foam-extend is distributed in the hope that it will be useful, but
17     WITHOUT ANY WARRANTY; without even the implied warranty of
18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19     General Public License for more details.
21     You should have received a copy of the GNU General Public License
22     along with foam-extend.  If not, see <http://www.gnu.org/licenses/>.
24 Application
25     icoFoam
27 Description
28     Transient solver for incompressible, laminar flow of Newtonian fluids.
30 \*---------------------------------------------------------------------------*/
32 #include "fvCFD.H"
34 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
36 int main(int argc, char *argv[])
38 #   include "setRootCase.H"
40 #   include "createTime.H"
41 #   include "createMesh.H"
42 #   include "createFields.H"
43 #   include "initContinuityErrs.H"
45 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
47     Info<< "\nStarting time loop\n" << endl;
49     while (runTime.loop())
50     {
51         Info<< "Time = " << runTime.timeName() << nl << endl;
53 #       include "readPISOControls.H"
54 #       include "CourantNo.H"
56         fvVectorMatrix UEqn
57         (
58             fvm::ddt(U)
59           + fvm::div(phi, U)
60           - fvm::laplacian(nu, U)
61         );
63         solve(UEqn == -fvc::grad(p));
65         // --- PISO loop
67         for (int corr = 0; corr < nCorr; corr++)
68         {
69             volScalarField rUA = 1.0/UEqn.A();
71             U = rUA*UEqn.H();
72             phi = (fvc::interpolate(U) & mesh.Sf())
73                 + fvc::ddtPhiCorr(rUA, U, phi);
75             adjustPhi(phi, U, p);
77             for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
78             {
79                 fvScalarMatrix pEqn
80                 (
81                     fvm::laplacian(rUA, p) == fvc::div(phi)
82                 );
84                 pEqn.setReference(pRefCell, pRefValue);
85                 pEqn.solve();
87                 if (nonOrth == nNonOrthCorr)
88                 {
89                     phi -= pEqn.flux();
90                 }
91             }
93 #           include "continuityErrs.H"
95             U -= rUA*fvc::grad(p);
96             U.correctBoundaryConditions();
97         }
99         runTime.write();
101         Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
102             << "  ClockTime = " << runTime.elapsedClockTime() << " s"
103             << nl << endl;
104     }
106     Info<< "End\n" << endl;
108     return 0;
112 // ************************************************************************* //