[gemini]

Hi,

In FLUENT udf manual following statement is given,

Note that F_UDSI is available for wall and flow boundary faces, only. If a UDS attempts to access any other face zone, then an error will result.

Then, I tried to test this in a simple 3D uds diffusion problem where the domain has symmetry boundary condition. After convergence, I applied following function to printout the face values of uds at all boundaries:

face_t f;
Thread *tf;
thread_loop_f(tf, domain)/* loops over all face threads in a domain*/
  {
   begin_f_loop(f, tf)    /* loops over faces in a face thread  */
   {
     if (BOUNDARY_FACE_THREAD_P(tf)) 
       {
           Message("face id = %d, UDS0 value = %12.5e",f, F_UDSI(f, tf, 0));  
       }
   }                         
   end_f_loop(f, f_thread)
}

However, execution of this script resulted in an error. So, is there any way to prevent the use of F_UDSI at symmetry bc's? or How can I extract the type of bc of a particular boundary face?

thanks



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