For simulating a droplet and particle collision, I assigned particle mass using 6DOF below and I defined particle velocity with 'Centre of Gravity Velocity' in 'dynamic mesh' window. As figure below shows, no difference is seen in the results even by increasing the mass 100 times. How should I define mass of a particle (moving wall) properly?

Thanks!

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#include "udf.h"

DEFINE_SDOF_PROPERTIES(particle, prop, dt, time, dtime)

{

prop[SDOF_MASS] = 4.4e-6;

}

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