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Old   March 12, 2008, 18:57
Default Fluent, Grid Builing Issue
  #1
Mark
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Hi,

I'm trying to model the flow around around a wing mirror. I've taken the geometry in gambit, created a volume around it and subtracted the mirror geometry from it. I then mesh it and export the mesh for use in Fluent. When i read the mesh in Fluent i get an error stating "Building...

grid, Cell Centroid is xc 3815.967859 yc -975.544274 zc 975.307203 WARNING: cell 2932552 of thread 2 has NULL face pointer 3.Error: Build_Grid: grid error.

Clearing partially read grid" and "Null Domain Pointer" i was wondering if anyone can shed a light on what this means.

Thanks
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Old   March 13, 2008, 10:51
Default Re: Fluent, Grid Builing Issue
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Dave
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I have had an error similar to this before where Gambit did not export the entire mesh because the hard disc was full.
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Old   March 13, 2008, 11:49
Default Re: Fluent, Grid Builing Issue
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Mark
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Hmm. I don't think thats my problem.
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Old   March 14, 2008, 03:44
Default Re: Fluent, Grid Builing Issue
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Vinod Dhiman
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Did you check the quality of grid? Just check if it has some negative elements because NULL DOMAIN POINTER comes usually in that case.
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Old   March 14, 2008, 16:24
Default Re: Fluent, Grid Builing Issue
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CheeOnn
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you should check to make sure no duplicate edges on the geom.
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