Particle settling in air and viscous medium

Submitted by cho470 on Mon, 03/25/2024 - 02:07

Hi everyone,

I'm very new to LIGGGHTS, and I'm having troubles to create a simple simulation.

As a starter, I want to create a simulation where a single particle (metal particle) is settling in air and another simulation where a single particle is settling in viscous medium (like a resin).
When a particle falls in air, I just want to have force of gravity acting downwards on a particle.
When a particle falls in a viscous medium, I want to have drag force acting upwards on a particle, while force of gravity acting downwards on a particle.

How can I go about making a script command that can run this simulation?

Any help would be appreciated! I feel lost in the software.

Thank you!

Aiden Kim