This original source code for this toolkit has been retrieved from here: http://sourceforge.net/projects/openfoam-extend/files/OpenFOAM_Workshops/OFW7_2012_Darmstadt/Training/ZeljkoTukovic/ZeljkoTukovic-ImmersedBoundaryMaterial.tgz
This repository merely aims to make it easier to download and create forks of this source code.
Installation instructions available at openfoamwiki.net: http://openfoamwiki.net/index.php/Extend-bazaar/Toolkits/ImmersedBoundary
Target OpenFOAM versions/variants:
master
branch targets the variant OpenFOAM 1.6-extfe31
branch targets the variant foam-extend 3.1
Zeljko Tukovic and Hrvoje Jasak, according to the presentation available here: http://sourceforge.net/projects/openfoam-extend/files/OpenFOAM_Workshops/OFW7_2012_Darmstadt/Training/ZeljkoTukovic/ZeljkoTukovic-ImmersedBoundarySlides.tgz
From the source code headers:
OpenFOAM is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA