CGNS output files

The table lists the CGNS output files written by the software when you export the finite element model and solution results. The exported CGNS files are in Advanced Data Format (ADF). The Output request column indicates the 3D flow output request to specify to generate the exported CGNS files containing solution results. In Multiphysics, you request them in either Flow Output Requests or Thermal-Flow Output Requests modeling object. In Thermal/Flow or Electronic Systems Cooling, you request them in the 3D Flow subgroup, on the Results Options page, in the Solution dialog box.

File name	CGNS version	Content	Output request
.cgns	3.2.1	MeshesBoundary condition data	-
-.cgns	3.2.1 or 2.5.3	3D meshes for all solutions3D flow results for a steady-state solution or transient solution when Transient Results is set to Single File	At least one of the following:Temperatures Velocities Static and Total Pressures
-_.cgns	3.2.1 or 2.5.3	3D flow results for nth transient output time for a transient solution when Transient Results is set to Multiple Files
-_2D.cgns	3.2.1 or 2.5.3	2D meshes for all solutionsTotal pressure on walls results for a steady-state solution or transient solution when Transient Results is set to Single File	Surface Pressures
-2D.cgns	3.2.1 or 2.5.3	Total pressure on walls results for nth transient output time for a transient solution when Transient Results is set to Multiple Files

Note:

When you include the OUTPUT_CGNS_VERSION_2.5 advanced parameter in the solution, you can export solution results to CGNS version 2.5.3 instead of version 3.2.1. To set an advanced parameter, see Define Advanced Parameters.

How do I

Export thermal and flow data

Export primitives or elements for radiation modeling

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Exporting thermal and flow data

CFD export to CGNS

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Export options for Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal

Exported features of Primitives and their elements

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CGNS output files, Simcenter 3D 2021.1 Series

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