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-   -   overflow during writing result (http://www.cfd-online.com/Forums/cfx/86334-overflow-during-writing-result.html)

adam2008 March 20, 2011 00:05

overflow during writing result
 
Hi,
just got frustrated with overflow problem. The simulation looks alright during solving and is converging. But once the simulation is terminated or to write a backup result file, it gives overflow error and crashes. The simulation is a SST turbulence, fluid-solid conjugate simulation. The mesh quality is not good, I got a A negative SECTOR (ERROR #002100011) error, but simulation can run.

I have no idea how to fix it because the error happens during writing results instead of a typical divergence. What should I check? thanks a lot



+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Floating point exception: Zero divide |
|
+--------------------------------------------------------------------+
+--------------------------------------------------------------------+
| Writing crash recovery file |
+--------------------------------------------------------------------+

+--------------------------------------------------------------------+
| ERROR #001100279 has occurred in subroutine ErrAction. |
| Message: |
| Stopped in routine C_FPX_HANDLER: |
+--------------------------------------------------------------------+

joey2007 March 20, 2011 14:11

You have to improve the mesh.

adam2008 March 21, 2011 09:11

problem solved. I traced to the location where the CFX indicates sector negative volume, and manually corrected local mesh. Then it went alright. Thanks for any attention.


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