UDF for periodic boundary condition

Srivatsan Madhavan · May 23, 2016, 13:45

Hello

I want to write a UDF for periodic boundary condition in Fluent. I have to take temperature and velocity data points from outlet and feed it back to inlet. I was going through the fluent manual and found that there are two functions, DEFINE_PROFILE and DEFINE_EXECUTE_AT_END. I am not sure if I can write a function within a function as required by this case. If anyone else has encountered the same issue, could you please throw some light.

`e` · May 23, 2016, 18:45

Have you tried using the periodic boundary condition, or do you need to use a UDF? Instructions: http://www.cfd-online.com/Forums/flu...-tutorial.html

Srivatsan Madhavan · May 23, 2016, 19:23

Thanks for the reply ...I am aware of the periodic bc ...but want to do it as a udf due to some constraints in my model ...

spoink · June 20, 2016, 11:04

Hi Srivatsan,

have you achieved any success? If yes, I would highly appreciate if you could explain your final workflow.

Thanks in advance!

May 23, 2016, 13:45	UDF for periodic boundary condition	#1
Srivatsan Madhavan New Member Srivatsan Join Date: May 2016 Posts: 4 Rep Power: 10	Hello I want to write a UDF for periodic boundary condition in Fluent. I have to take temperature and velocity data points from outlet and feed it back to inlet. I was going through the fluent manual and found that there are two functions, DEFINE_PROFILE and DEFINE_EXECUTE_AT_END. I am not sure if I can write a function within a function as required by this case. If anyone else has encountered the same issue, could you please throw some light.

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May 23, 2016, 18:45		#2
`e` Senior Member Join Date: Mar 2015 Posts: 892 Rep Power: 18	Have you tried using the periodic boundary condition, or do you need to use a UDF? Instructions: http://www.cfd-online.com/Forums/flu...-tutorial.html

May 23, 2016, 19:23		#3
Srivatsan Madhavan New Member Srivatsan Join Date: May 2016 Posts: 4 Rep Power: 10	Thanks for the reply ...I am aware of the periodic bc ...but want to do it as a udf due to some constraints in my model ...

June 20, 2016, 11:04		#4
spoink New Member Join Date: May 2012 Posts: 2 Rep Power: 0	Hi Srivatsan, have you achieved any success? If yes, I would highly appreciate if you could explain your final workflow. Thanks in advance!