Granular flow dynamics in rotating systems is a multifaceted field that blends fundamental physical principles with practical industrial applications. Rotating drums, mixers and similar apparatuses ...

When we take a stroll on the beach, we walk on the sand without any trouble. The sand appears solid and is difficult to compress. When we put the same sand grains in an hourglass, they behave very ...

If static, this problem is straightforward to solve using FE software because the nonmoving material can be treated as a solid. But attempting to simulate the unloading of the hopper would complicate ...

MADISON - A handful of sand contains countless grains, which interact with each other via friction and impact forces as they slip through your fingers. When a handful becomes a load in an excavator ...

video: In their work on microrobotic microrollers, researchers in Lehigh University's Laboratory of Particle Mixing and Self-Organization showed that the negative angle of repose (uphill flow) results ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...

Nalini Easwar's field of interest is experimental condensed matter physics, specifically complex fluids such as macromolecular solutions, colloids and granular systems. Her current work focuses on ...