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Brief Description of CGNS

The CFD General Notation System (CGNS) external link is a set of standards, together with software implementing those standards, for the recording of data associated with Computational Fluid Dynamics (CFD). Physical data storage is accomplished via a general database manager, either HDF (Hierarchical Data Format) or ADF (Advanced Data Format). The present document describes the mapping from the Standard Interface Data Structures (SIDS) to the file structure provided by the HDF database manager. A similar document, the SIDS-to-ADF File Mapping Manual, describes the mapping for the ADF database manager.