The OpenFOAM Foundation
OpenFOAM is distributed by the OpenFOAM Foundation and is freely available and open source, licensed under the GNU General Public Licence. There are two main elements to the GPL, designed to prevent open source software being exploited by their inclusion within non-free, closed sourced software products: Software that includes source code licensed under the GPL […]
Software that is included in the OpenFOAM source code base must conform to quality standards. Software quality can be split into two areas: Functional quality: how well it performs to a given design, based on requirements, i.e. its fitness for purpose. Structural quality: how well it meets requirements to be able to deliver functional quality, […]
OpenFOAM is a large piece of software (of the order of 1.5 million lines of code) in a complex area of scientific application. Since its open source release in 2004, it has become the CFD software of choice for many thousands of people from industry, government laboratories, academic institutions, etc., who download OpenFOAM and use […]
OpenFOAM is developed by a team of individuals who contribute their work to the project, with the support and consent of the companies that employ them. Contributions are made under the OpenFOAM Contributor Agreement (to facilitate enforcement of the free, open source licence), signed either by the individual, or by the organisation that employs them. […]
Table of Contents 1. Code 1.1. General 1.2. The .H Header Files 1.3. The .C Source Files 1.4. Coding Practice 1.5. Conditional Statements 1.6. for and while Loops 1.7. forAll, forAllIter, forAllConstIter, etc. loops 1.8. Splitting Over Multiple Lines 1.8.1. Splitting return type and function name 1.8.2. Splitting long lines at an “=” 1.9. Maths […]
Download Archive This is an archive of download instructions for releases of OpenFOAM since version 1.7.0. The instructions were written at the time of release for the operating systems of that time. We strongly recommend today’s users install the latest release, for latest versions of operating systems. Software packs relating to this archive are stored at the OpenFOAM Download […]
Release History Announcements of OpenFOAM Releases since version 1.0 in 2004 OpenFOAM 12 Released 9th July 2024 Read More OpenFOAM 11 Released 11th July 2023 Read More OpenFOAM 10 Released 12th July 2022 Read More OpenFOAM 9 Released 20th July 2021 Read More OpenFOAM 8 Released 22nd July 2020 Read More OpenFOAM 7 Released 8th […]
Function Objects OpenFOAM can carry out post-processing automatically while the simulation is running using function objects. In v2.3.0, a distinction is made between when a function object evaluates, and when it writes to file. The respective behaviour is controlled using the new evaluateControl and existing outputControl keyword settings. The specification for each entry is identical, […]
Mesh Decomposition and Reconstruction The following improvements have been made to mesh decomposition and reconstruction utilities: reconstructPar, reconstructParMesh and decomposePar now decompose, reconstruct all cell sets, face sets and point sets; this behaviour can be disabled by executing with the -noSets command line option. The decomposeParDict file contains some optional decomposition constraints as shown below. […]
Polynomial Surface Normal Gradient The surface normal gradient calculation, snGrad, is integral to pressure-velocity algorithms on unstructured meshes and the choice of method has an important impact on both accuracy and stability. 2nd-order accuracy on arbitrary unstructured meshes cannot be achieved using an snGrad calculated on a face only from its neighbouring cells (even with […]