An Underlying Asymmetry within Particle-size Segregation
Kasper van der Vaart, Parmesh Gajjar, Ga\"el Epely-Chauvin, Nicolas, Andreini, J.M.N.T. Gray, Christophe Ancey
TL;DR
This study investigates the asymmetrical behavior of particle segregation under oscillatory shear, revealing how local concentration influences the segregation speed of large and small particles, and providing new theoretical insights.
Contribution
It uncovers an underlying asymmetry in particle segregation dynamics dependent on local concentration, supported by experimental and theoretical analysis.
Findings
Small particles segregate faster in regions with many large particles.
Large particles segregate slower in regions with many small particles.
The asymmetry is quantitatively captured and related to other physical systems.
Abstract
We experimentally study particle scale dynamics during segregation of a bidisperse mixture under oscillatory shear. Large and small particles show an underlying asymmetry that is dependent on the local particle concentration, with small particles segregating faster in regions of many large particles and large particles segregating slower in regions of many small particles. We quantify the asymmetry on bulk and particle scales, and capture it theoretically. This gives new physical insight into segregation and reveals a similarity with sedimentation, traffic flow and particle diffusion.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsCoagulation and Flocculation Studies · Stochastic processes and statistical mechanics