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Old   October 24, 2013, 06:36
Exclamation Periodicity
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What is the effect of rotational periodicity in the transient analysis?? I tried with opening for the rotational periodicity mentioned area for first (my simulation didn't run got error saying divide by zero.. )
later i gave the region as rotational periodicity then every time i run the simulation there is a message called "CCl2flow.exe has stopped working"
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Old   October 24, 2013, 07:44
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Rotational periodicity is a mathematical link between faces on a domain which mimic rotational periodicity. It is a little hard to explain - If you do the CFX tutorials it might make more sense.

Also the FAQ may help: http://www.cfd-online.com/Wiki/Ansys...do_about_it.3F
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Old   October 24, 2013, 21:47
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what is the cause of crashing og CCl2flow.exe?
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Old   October 24, 2013, 21:48
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No idea. That is the gizmo which reads the CCL so it looks like something is invalid in your CCL.
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Old   October 25, 2013, 01:56
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I tried to run other simulations they are okay. but when i particularly run this one the ccl2flow stops working.
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Old   October 25, 2013, 04:52
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As I said, the error suggests your CCL is invalid, or it is not linked to your mesh correctly. I would regenerate that def file in CFX-Pre.
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ccl2flow.exe, divide by zero, periodicity

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