[ANSYS Meshing] export to CGNS extremely slow

Renold · April 24, 2019, 00:29

Hi,

I have generated a mesh and tried to export it to CGNS format in ANSYS meshing but the process is extremely slow. It contains 5M elements and the exporting has been going on for 3 hrs and still not done. I wonder if this is normal.

Thanks,
Renold

Renold · April 24, 2019, 18:54

It took 5 hr to generate the CGNS file finally. Then I delete the node merge group command and re-generated the CGNS file and it took only 5 min. The same situation happens when I translated it into Fluent format. Is there a way to speed up the mesh translation process with node merge group? I merge the nodes because there are many identical bodies and I meshed them by CAD instances.

April 24, 2019, 00:29	export to CGNS extremely slow	#1
Renold New Member Join Date: Apr 2009 Posts: 24 Rep Power: 17	Hi, I have generated a mesh and tried to export it to CGNS format in ANSYS meshing but the process is extremely slow. It contains 5M elements and the exporting has been going on for 3 hrs and still not done. I wonder if this is normal. Thanks, Renold

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April 24, 2019, 18:54		#2
Renold New Member Join Date: Apr 2009 Posts: 24 Rep Power: 17	It took 5 hr to generate the CGNS file finally. Then I delete the node merge group command and re-generated the CGNS file and it took only 5 min. The same situation happens when I translated it into Fluent format. Is there a way to speed up the mesh translation process with node merge group? I merge the nodes because there are many identical bodies and I meshed them by CAD instances.