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-   -   Pressure profile UDF for unsteady-state problem? (http://www.cfd-online.com/Forums/fluent/49044-pressure-profile-udf-unsteady-state-problem.html)

Mohsen Keshavarzian August 19, 2008 10:01

Pressure profile UDF for unsteady-state problem?
 
Dear Sir I would like to write a UDF for a pressure inlet profile in an unsteady-state problem. I mean the pressure varies with time and also the pressure curve equation changes 2 times in the period. I have studied the UDF manual, but there was no UDF about time varying problem. Would you please help me? Thanks.

AJ August 19, 2008 14:05

Re: Pressure profile UDF for unsteady-state proble
 
There is a tutorial problem with time varying velocity... please see if that helps...

Google search could also provide you some information...

http://web.njit.edu/topics/Prog_Lang...ml/node112.htm


MK August 20, 2008 04:22

Re: Pressure profile UDF for unsteady-state proble
 
Dear AJ Thanks for your great favor. But I have more questions: 1. May I use that for 3D models? 2. How can I change the equation during time? (Maybe I should use some if ... else statements)


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