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Old   March 20, 2011, 00:05
Default overflow during writing result
  #1
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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: |
+--------------------------------------------------------------------+
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Old   March 20, 2011, 14:11
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You have to improve the mesh.
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Thousands of issues can cause a division by zero. Please do not capture a thread, with the argument: "I have the same issue ...."
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Old   March 21, 2011, 09:11
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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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