CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Fluent UDF and Scheme Programming (http://www.cfd-online.com/Forums/fluent-udf/)
-   -   udf for Roughness Constant, Cs > 1 (http://www.cfd-online.com/Forums/fluent-udf/118955-udf-roughness-constant-cs-1-a.html)

saayo3 June 7, 2013 04:51

udf for Roughness Constant, Cs > 1
 
Hi, everyone,

I am modeling a domain that has the surrounding area with non-uniform & non-homogenous surface roughness, in which case the surface Roughness Constant, Cs, is outside the upper limit of the range (0.5 - 1.0) that can be specified in Fluent.

I desire to specify a value of Cs greater than 1.0 as has been done in previous researches, and this requires udf.

Pls., could someone kindly help me with the udf codes for writing constant-value Roughness Constant, Cs.

Thanks, and hoping to get a response soon.

Samuel.

nenazarian October 18, 2013 13:34

Hi Samuel,

I was wondering if you have wrote a udf for a wall roughness.
I was similar problem and I would appreciate your help.

Cheers,
Negin


All times are GMT -4. The time now is 21:31.