CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   UDF Source term problem (http://www.cfd-online.com/Forums/fluent/80861-udf-source-term-problem.html)

natantyt October 8, 2010 18:12

UDF Source term problem
 
Hi

I have a problem with Fluent UDF for a mass source term. I'm modelling a catalytic reaction, (steam reforming) with complex reaction system. So I didn't activate the reaction and finite rate chemistry part in the fluent. Just focused on the source terms. So I defined source terms for hydrogen, methane, water,co,co2 and nitrogen. The overall mass source considered zero as we have overall balance in mass. But whenever i enable the UDF and load the library. It seems that Fluent does not consider my UDF for reaction at all. The results are the same as a stream without reaction.

Do You have any idea.

Thanks

Natan

wlt_1985 July 27, 2011 14:07

Quote:

Originally Posted by natantyt (Post 278492)
Hi

I have a problem with Fluent UDF for a mass source term. I'm modelling a catalytic reaction, (steam reforming) with complex reaction system. So I didn't activate the reaction and finite rate chemistry part in the fluent. Just focused on the source terms. So I defined source terms for hydrogen, methane, water,co,co2 and nitrogen. The overall mass source considered zero as we have overall balance in mass. But whenever i enable the UDF and load the library. It seems that Fluent does not consider my UDF for reaction at all. The results are the same as a stream without reaction.

Do You have any idea.

Thanks

Natan

Dear Natan,

I faced this problem too. Habe you found the solution and how you solve it? Pls help.

Best regard


All times are GMT -4. The time now is 00:35.