Intro

OpenFOAM® is free and open-source software, hence everyone can contribute, modify and redistribute it. The two main distributions of OpenFOAM® actively developed are:

• OpenFOAM® from the OpenFOAM Foundation
• OpenFOAM® by OpenCFD Ltd

These are distributed through two differetn web sites, respectively at:

• https://www.openfoam.org
• https://www.openfoam.com

This book will cover OpenFOAM® by OpenCFD Ltd which does verison control with the following the nomenclature:

OpenFOAM-v2312

Which stands for years followed from the month, i.e. 23 stands for year 2023, while 12 for December. The release cicle occurs every 6 months.To check the version of OpenFOAM® run, once the sofware is already installed:

foamVersion

What`s the difference between the two main distributions of OpenFOAM®?

OpenFOAM® by OpenCFD Ltd contains more utilities and they optimise more the mesh generation fuctionality.