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Parallel Error in ANSYS FLUENT 12

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Old   March 4, 2014, 20:08
Default use serial processor to open
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Daniel Oliden
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I noticed this happened to me when I imported a mesh from a grid generator besides ICEM.

I had to start FLUENT with the serial processor in order to import the case file from pointwise. Then after that, I would be able to save the case and reopen in FLUENT with parallel processors.

Hope this helps.
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Old   May 19, 2014, 02:49
Default how to fix this problem "unbale to read cmd header"
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Dasiy Wang
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Quote:
Originally Posted by zeusxx View Post
thank u very much. I solved this problem several months ago. Thank u all the same.
Hi, you said you have solved this problem, can you tell us how? I recently come across this problem and it quite distress me. Thank you for you help

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Old   May 19, 2014, 07:54
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Quote:
Originally Posted by Kanarya View Post
hi,
I have the same problem...what did you mean with 'open UDM in the DEFINE menu' because I am using in define_mass_transfer function C_UDMI but it doesnt work in parallel...

thanks in advance!!!

Hi,
He meant that if you have UDMs in your UDF, first, you'd better check if you have defined them in Define menu or not. You might have forgotten to define them before you use them in your UDF. That's all.
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Old   April 21, 2015, 03:02
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Actually the divergence is strictly related by the dpm injections, for the cases including dpm injections.

If you go on injecting DPM in an unsteady manner, dpm allocates memory and at some point the anlysis crashes. kind of a memory error.

switching of the unsteady dpm can solve the problem, but by this way some accuracy may be lost.

Last edited by hataysal_e; April 21, 2015 at 09:13. Reason: update
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