UDF: for the setting of roughness height

May 7, 2006, 21:26

hi,I am dealing with the flow over a roughened surface, I found there is only a option for constant roughness height in FLUENT.

But I want to set different roughness height at different position on the surface. So I wonder if I can use UDF to set the roughness height.

I am not familiar with UDF,so I am posting the message to ask if UDF can be used to set variable roughness height on the wall.

Expecting any suggestions, Thanks a lot!!

m zahid · September 10, 2014, 16:20

have you find answer, i need UDF for setting roughness height in fluent. if u have UDF, please share with me. here is my email.

mziqureshi@hotmail.com

thanks.
zahid

May 7, 2006, 21:26	UDF: for the setting of roughness height	#1
maximus Guest Posts: n/a	hi,I am dealing with the flow over a roughened surface, I found there is only a option for constant roughness height in FLUENT. But I want to set different roughness height at different position on the surface. So I wonder if I can use UDF to set the roughness height. I am not familiar with UDF,so I am posting the message to ask if UDF can be used to set variable roughness height on the wall. Expecting any suggestions, Thanks a lot!!

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September 10, 2014, 16:20	hi	#2
m zahid Member Qureshi M Z I Join Date: Sep 2013 Posts: 79 Rep Power: 12	have you find answer, i need UDF for setting roughness height in fluent. if u have UDF, please share with me. here is my email. mziqureshi@hotmail.com thanks. zahid