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OpenFOAM is a free, open source CFD software package developed primarily by [OpenCFD](http://www.openfoam.com) since 2004 and is currently distributed by [ESI-OpenCFD](http://www.openfoam.com) and the [OpenFOAM Foundation](http://openfoam.org). It has a large user base across most areas of engineering and science, from both commercial and academic organisations. OpenFOAM has an extensive range of features to solve anything from complex fluid flows involving chemical reactions, turbulence and heat transfer, to acoustics, solid mechanics and electromagnetics. [More...](http://www.openfoam.com/documentation)
The README file distributed by the Foundation can be found in the file README-Foundation.org
OpenFOAM+ uses the OpenFOAM Foundation version as a common code base, with wider functionality and platform support. Its purpose is to accelerate the public availability of new features which are sponsored by OpenCFD's customers and contributed by the OpenFOAM community.
# Copyright
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 3 of the License, or (at your option) any later version. See the file COPYING in this directory or [http://www.gnu.org/licenses/](http://www.gnu.org/licenses/), for a description of the GNU General Public License terms under which you can copy the files.
# OpenFOAM Trademark
OpenCFD Limited, owner of the OpenFOAM Trademark, has granted the use of the Trademark to the OpenFOAM Foundation. Violations of the Trademark are continuously monitored and will be duly prosecuted. Please [contact OpenCFD](http://www.openfoam.com/contact) if you have any questions on the use of the OpenFOAM trademark.
# Useful Links
-[Download and installation instructions](http://www.openfoam.com/releases)