It looks like you are referring to the paper titled (or similar variations like "complex granular systems").
: How to move beyond simple spheres by using "clumped" spheres, super-ellipsoids, or polyhedral meshes to represent real-world grain shapes. Discrete element method modelling of complex gr...
: Modeling the friction, rolling resistance, and interlocking forces that occur between complex shapes. It looks like you are referring to the
This research typically focuses on using the to simulate how non-spherical or irregularly shaped particles—like agricultural grains, rocks, or powders—behave under different conditions. Key areas usually covered in such posts or papers include: or soil-tool interactions in agriculture.
: Techniques to speed up calculations when dealing with millions of irregularly shaped particles.
: Practical uses in industrial processes like silo discharge, mixing, milling, or soil-tool interactions in agriculture.