[qwerty010]

hello.
I am currently doing rpb (rotation packeb bed) simulation and my geometry is roughly as follows.

As a result of referring to various papers, most of them said that rotation is implemented by creating a udf that rotates the inlet, so I also created a udf using define_cg_motion and define_grid_motion. However, when running fluent, an error occurs and the simulation does not proceed.

The udf I wrote is as follows.

#define PI 3.141592654
#define rpm 1000.0
#define inlet_ID 6
#define d 0.001 /* Nozzle width (m) */
#define R 0.019 /* radius of liquid inlet (m) */


DEFINE_CG_MOTION(rotating,dt,vel,omega,time,dtime)
{
double w;

Thread *t;
face_t f;
real NV_VEC(A);
real force_x, dv;

NV_S(vel, =, 0.0);
NV_S(omega, =, 0.0);

if (!Data_Valid_P())
return;

w = rpm * 2.0 * PI / 60.0;

omega[0] = w;
omega[1] = w;

}

Referenced papers are as follows:
https://doi.org/10.1016/j.cep.2020.108107
https://doi.org/10.1016/j.cej.2021.130874

Do I need to use another udf macro to move the boundary like an inlet?
Or is there something wrong with my udf code?

I need your help..please..
thank you