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OpenFOAM Introduction

About OpenFOAM

OpenFOAM is the leading free, open source software for computational fluid dynamics (CFD), managed and developed by CFD Direct and released by the OpenFOAM Foundation.

OpenFOAM Documentation | CFD Direct

OpenFOAM Documentation

Free OpenFOAM Documentation resource including the OpenFOAM User Guide, OpenFOAM Linux Guide and articles about the underlying technology.

OpenFOAM Features | CFD Direct

OpenFOAM Features

OpenFOAM has an extensive set of features in meshing, core numerical methods, physical modelling and data analysis for a wide range of CFD applications.

Free, Open Source Software

OpenFOAM is free, open source CFD software, distributed by the OpenFOAM Foundation under the GNU General Public Licence. The GPL gives users the freedom to run, copy, distribute, study, change and improve the software. It attempts to preserve these freedoms by preventing the inclusion of open source software within non-free, closed sourced software products, by the following two rules.

  1. Software that includes source code licensed under the GPL inherits the GPL licence.
  2. If compiled binaries of software licensed under GPL are distributed, the source code must also be made available by the distributor.

The licence discourages sale of the software, in either original or modified form, because anyone purchasing the product could demand the source code and redistribute it for free. If a company or user modifies the software, e.g. as the basis of an in-house tool, the licence does not require them to redistribute those modifications.