Reply To: Dynamic mesh-nan in cg definition

[Thodorisdm]

I always check the mesh prior to the preview of the mesh motion. Hereby my UDF. Always works for frequency 1-5 but not for larger.

 

#include "udf.h"

 

#define amplitude 0.01

#define frequency 10

 

DEFINE_CG_MOTION(ymotion,dt,vel,omega,time,dtime)

{

real vmax;

real Tper; 

 

Tper = 1/frequency;

vmax = (amplitude * 2*M_PI) / Tper;

vel[1] = vmax*(cos(2 * M_PI * time / Tper));

}