Some images mean more to you than to others.
This is the force network between 10.000 particles in a cylinder. The 3 seconds long simulation was made in LIGGGHTS and the plot was made with Matplotlib in Python.
This is what I am doing in my masters’ thesis. Using physics engines to dump granular particles in a container and try to measure the quality of the simulation. What I am focusing on is the difference between smooth and non-smooth DEM simulations.