reference:
http://fem.um.es/Ejs/EjsExamples3.3/Simulations/Particles3D.html




http://fem.um.es/Ejs/EjsExamples3.3/Simulations/Particles3D_Particles_3D.html
Particles 3D

This is a simulation of a set of particles moving freely inside a 3D cube and colliding with a moveable floor.
The state it is now, the example is just a show-off of the 3D capabilities of Ejs, but... can you think of an application to gas dynamics?
[img]http://fem.um.es/Ejs/EjsExamples3.3/Simulations/_examples/_data/threeD.gif[/img]

u can try it, but i have not done any 3-D stuff, 2-D is already tough for me???