I'm modelling a cyclone separator in Solidworks and have ran several different particle studies with particles of different densities. However, density seems to have no impact on how the particles behave.
I'm trying to validate my CFD model by comparing it to a mathematical model I've created based on academic research. One of the parameters that influences particle separation is density. When I have tried to recreate this in Solidworks I'm running into a problem where the "drop-off" effect requires a much higher particle diameter before instigation (roughly an order of magnitude). I believe this may be because Solidworks is ignoring the density specification of the material and, possibly solely, relying on the diameter of the particle instead.
I've done an experiment where specified the material density to be arbitrarily large (1x10^12Kg/m^3) rather than the typical estimation for my substance (<1000 Kg/m^3) and there was no difference in the particle trajectories. The only variable that seems to have an impact is its initial velocity and particle diameter.
Am I missing a setting or something? I'm reasonably new to CFD analysis and I'm thinking it might be something silly like a missing checkbox.
Thanks for reading!