Hello,
beforehand I am very new to this topic. I want to use LIGGGHTS and later CFDEMcoupling to simulate a coaxial rheometer which in theory is a hollow cylinder with a rotating inner wall.
My question: How do I create this geometry in LIGGGHTS without importing a mesh file?
My ideas were on the one hand to create two cylinder regions. For the outer wall an inward facing region and for the inner wall an outward facing region.
On the other hand an idea was to create a region inside the outer wall and create the inner wall with a fix.
I would be happy if someone could help me. Thanks a lot.