Spinning Disk Trick

Hello guys!

My name is Domien and I'm new here :)
I'm a physics student at the University of Antwerp, Belgium. I'm currently working on my Bachelor's thesis.

I'm trying to model a Spinning Disk with a hole in it, just like in this fun video: www.youtube.com/watch?v=h0SZZTBQmEs
It is my goal to learn more about this weird effect by modeling the spinning disk in COMSOL. However, I am new to COMSOL and there is nobody at the University who can help me with it. That's why I'm asking you guys for help :)

I have already succeeded in modeling the disk itself and a rectangular cuboid, which serves as the floor. Things yet to be done: add gravity to the disk, add friction between the objects, make it a time-dependent study and set initial velocity and position.

Can any of you awesome people help me with this? :D

Thanks!

Domien

PS: When I'm at the University on monday, I will be able to upload my latest file.