I'd like to do surface integration using UDF on some surfaces that I created for postprocessing purpose. It seems UDF can only access those boundary surfaces using Lookup_Thread(domain,surface_thread_id). Does anyone know a way to access the non-boundary surfaces in UDF? Thanks in advance.

Henry

You cant access post processing surfaces in udf. The only way i know is to create the post process surface in gambit an define it as interior. Then you can access it later in your udf.

RoM

Hi Henry, Have a look at the UDF-Archive at www.fluentuser.com, the UDF with solution ID 1056 will do the trick if you are working on Linux/Unix. Markus