idaholab / liggghts-inl Goto Github PK

Hi,
I'm currently trying to do DEM simulation for modeling continuum model.
Basically, i'd like to make scratch model with flat surfaces and rounded tip.

However, when i make the bond between the particles, i think the particle interaction was ignored.
The similar trend was observed in example files.
Is it possible mimic the particle collision with bond interaction?

and i'm really curious how to modify the code to make bond in very early time step.
i think tsCreateBond command is for setting up the time-step which allows to make bond.
But it looks not work well even if i intended to allow very a few time steps in which make bond structure.

Could anyone help me to have idea about it ?

Hi,

I noticed that if I want to simulate the drag force from fluid, I must use the command fix nve/cfd_cn/sphere. It seems that the superquadric is not feasible for CFD-DEM now. I want to add this feature but I'm new to CFDEM so I wonder if it's possible to do that. What is the most difficult part about this? Or if there is a theoretical difficult about this? Thanks!

Sincerely,
Fan