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Old   June 3, 2005, 16:58
Default CFX solver command
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1ST QUESTION: This may be a simple question but I need any advise. I am running a Rotating Frame of Ref problem with heat transfer, everything goes fine until I do mesh refinement or ask for DOUBLE PRECISION... I run out of memory, (I am already using 1.4x an I have tried higher...) then the question is where (in the online manuals) can I find the proper commands to increase the allocated memory in order to send the definition file to a more powerfull machine we have?... I have already the script file, but I will need to 'ask' for more memory stacks (integer and real). 2ND QUESTION: I am getting RMS errors of about 2e-3 and RMS peak of 2E-2 in the above type problem (that's why I made mesh refinement)... Does anyone know any paper/book that deals with convergence issues in rotating frames problems?

Sorry if they're too miserable questions... I am still new in this.

Best regards
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Old   June 3, 2005, 20:31
Default Re: CFX solver command
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Hi Carl,

Read the warning carefully. If the solver cannot allocate enough memory, then you might want to reduce the amount of memory it is trying to allocate. Try a memory factor of 0.9 instead, or better still, run it in parallel.

Regards, Robin
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Old   June 4, 2005, 03:01
Default Re: CFX solver command
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Thanks for the advise, I definitively do not know enough about this... since I increased the cells number I thought more allocation was required... but it is the reverse. It is running now Robin, thanks very much.... I got antoher error but I think I can sort it out... (ERROR #002100004 has occurred in subroutine Out_Scales_Flu...) it did not stop the solution... Thanks.

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