Synthetic jet 3D UDF
 

I am working on synthetic jet flow simulation. i want to know that how can i generate a 3d UDF for the following parameters velocity = 195m/sec, Frequency is 17.
I am also attaching the udf generated in 2d. Now i want to do the same in 3D..what are the changes that i should made to get the result. Please..

#include"udf.h"

DEFINE_PROFILE(SJ_velocity,thread,position)

{

face_t f;

begin_f_loop(f,thread)

{

real freq=17;

real t= RP_Get_Real("flow-time");

F_PROFILE(f,thread,position) =195*sin(freq*(t)*(2.*3.141592654));


}

end_f_loop(f,thread)

}

This is for a boundary condition right? Otherwise you might need to use a cell thread and not a face thread.

Here's an example from the Fluent manual for a pressure profile.

You only need to use x[0] for the x-coordinate and x[2] for the z-coordinate.

Also you shouldn't have ignored the rules which says to not post Fluent questions here, that's how posts get ignored and buried...

Thank you sir for your kind reply. i tried this code and divergence: AMG solver Temperature is detected

Well (sarcasticly) I used it and it worked so beautifully that gold rained from the sky.

Why would you use the code as-is? It's probably completely incorrect for your problem. If only you would post what you did, maybe someone would help you...