Hello
I am trying to investigate flow around pitching & heaving airfoil in Fluent.
I am using DEFINE_CG_Motion function. If I run on of each motion solitary, they work correctly. But when I implement both motion because of change in center of rotation, motion does not behave correct.
Could you explain that how I can correct center of rotation.
DEFINE_CG_MOTION(pitching_heaving, dt, cg_vel, cg_omega, time, dtime)
{
real landa;
landa=2.0*PI*FREQ;
cg_vel[1] = h0*landa*cos(landa*time);
cg_omega[2] = theta0*landa*cos(landa*time);
}
Best Regards.
Emanuel Camacho
The center of rotation is selected in the FLUENT GUI and not in the UDF script. You select your rotation center according to your mesh and coordinate axis.
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