I have seen many animations done in various 3d cad software and also few in solidworks. But what I what to known, is how do they show the flow of particles from one part to another. For e.g. the flow of fine powder falling from one bin to another or air movement. Is it done in some other software or the same. If yes then please let me known which software. Currently I am using solidworks 2009, can it be done in this? Please help. Thank you in advance.