1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2008 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
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.
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
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
29 Finite volume method test code.
31 \*---------------------------------------------------------------------------*/
35 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
37 int main(int argc, char *argv[])
40 # include "setRootCase.H"
42 # include "createTime.H"
43 # include "createMesh.H"
45 volScalarField fx = pow(mesh.C().component(vector::X), 2);
47 volScalarField gradx4 = fvc::grad(fx)().component(vector::X);
50 //volVectorField curlC = fvc::curl(1.0*mesh.C());
55 surfaceScalarField xf = mesh.Cf().component(vector::X);
56 surfaceScalarField xf4 = pow(xf, 4);
58 for (int i=1; i<xf4.size()-1; i++)
60 scalar gradx4a = (xf4[i] - xf4[i-1])/(xf[i] - xf[i-1]);
61 Info<< (gradx4a - gradx4[i])/gradx4a << endl;
69 // ************************************************************************* //