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Null Domain Pointer Error when importing CGNS mesh

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Old   November 20, 2005, 21:07
Default Null Domain Pointer Error when importing CGNS mesh
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I am getting the following error when I attempt to import a CGNS mesh file into Fluent: ------------------------------------------------------
: /file/import/cgns/mesh

CGNS file name [] tomgrid_3.cgns

Reading "| utility fe2ram -tCGNS -d3 tomgrid_3.cgns"...

Starting exec /usr/local/Fluent.Inc/utility/fe2ram4.3/lnx86/fe2ram.4.3.11 -tCGNS -d3 tomgrid_3.cgns

CGNS file to RAMPANT file

Read 712937 nodes, 781813 elements, 1 groups.

8416 tet elements

10994 pyramid elements

189839 wedge elements

572564 hex elements



Error: Null Domain Pointer

Error Object: #f

----------------------------------------------------------- Fluent obviously isn't happy with the mesh. I am trying to diagnose the problem with the CGNS file. It would be a great help if I could figure out what the above error message means.

Thanks, Matt
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Old   November 23, 2005, 17:37
Default Re: Null Domain Pointer Error when importing CGNS
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negative cells or skewness levels so high the solver is interpreting these cells as completely flat with neg. volumes. go back to your grid and check for skewness.
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Old   November 26, 2005, 01:01
Default Re: Null Domain Pointer Error when importing CGNS
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Well, why didn't they just say so! I have discovered the negative volumes. Thanks for the translation.

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