Revision as of 02:26, 8 November 2008

1 Introduction

The CFD General Notation System (CGNS) file converters cgnsToFoam and foamToCGNS allow for the conversion back and forth between OpenFOAM cases and files in CGNS format.

The converters support:

• import and export of grid information
  • importing structured and unstructured grid from CGNS format file
  • exporting OpenFOAM grid format to unstructured grid CGNS format
• import and export of boundary conditions information, including periodic or cyclic BCs
• import and export of flow solutions

For more information on the CGNS file format, visit the following site: http://cgns.sourceforge.net/

2 Installing the CGNS converters

The CGNS file converters are available from the SourceForge.NET site http://openfoam-extend.wiki.sourceforge.net/ through a Subversion source code repository.

2.1 Downloading the CGNS converters and companion libraries

2.2 Compiling the libraries

2.3 Compiling the applications

3 How to test the CGNS converters

4 Basic documentation

4.1 cgnsToFoam

4.2 foamToCGNS