Contact Algorithm

shiw

What is the geometric algorithm for determining whether two polyhedral particles collide in EDEM?

Stephen Cole

Hi,

We don't publish the specific contact algorithm used in EDEM for polyhedral, it uses a method similar to:

https://developer.nvidia.com/blog/thinking-parallel-part-i-collision-detection-gpu/

You can review some of the physics model references such as:

Nassauer, B., Kuna, M. Contact forces of polyhedral particles in discrete element method. Granular Matter 15, 349–355 (2013).  https://doi.org/10.1007/s10035-013-0417-9

You may find this webinar interesting also:

https://www.nvidia.com/en-us/on-demand/session/gtcspring21-s32050/

Regards

Stephen