00001 /*---------------------------------------------------------------------------*\ 00002 ========= | 00003 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 00004 \\ / O peration | 00005 \\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd. 00006 \\/ M anipulation | 00007 ------------------------------------------------------------------------------- 00008 License 00009 This file is part of OpenFOAM. 00010 00011 OpenFOAM is free software: you can redistribute it and/or modify it 00012 under the terms of the GNU General Public License as published by 00013 the Free Software Foundation, either version 3 of the License, or 00014 (at your option) any later version. 00015 00016 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT 00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00018 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 00019 for more details. 00020 00021 You should have received a copy of the GNU General Public License 00022 along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>. 00023 00024 Description 00025 Return location of contact sphere on the face 00026 00027 \*---------------------------------------------------------------------------*/ 00028 00029 #include <OpenFOAM/face.H> 00030 00031 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00032 00033 Foam::scalar Foam::face::contactSphereDiameter 00034 ( 00035 const point& p, 00036 const vector& n, 00037 const pointField& meshPoints 00038 ) const 00039 { 00040 scalar magN = Foam::mag(n); 00041 00042 vector n1 = n/(magN + SMALL); 00043 vector n2 = normal(meshPoints); 00044 00045 n2 /= Foam::mag(n2) + SMALL; 00046 00047 return 2*((centre(meshPoints) - p) & n2)/((n1 & n2) - 1.0); 00048 } 00049 00050 00051 // ************************ vim: set sw=4 sts=4 et: ************************ //
