Bi-disperse particle-laden flows in the Stokes regime

TL;DR

This paper presents experimental fluid dynamics videos demonstrating the behavior of bi-disperse particle-laden flows in a viscous regime, focusing on the effects of multiple particle sizes in thin film flows.

Contribution

It introduces visual experiments analyzing the impact of adding a second particle species to silicone oil flows in the Stokes regime.

Findings

Different flow behaviors observed with single and bi-disperse particles

Insights into particle interactions in viscous thin film flows

Experimental setup for studying particle-laden flow dynamics

Abstract

This arXiv article describes the fluid dynamics video on `Bi-disperse particle-laden flows in the Stokes regime', presented at the 65th Annual Meeting of the APS Division of Fluid Dynamics in San Diego, CA in November 2012. The video shows three different experiments which aim to investigate the dynamics of a thin film of silicone oil, laden with glass beads and the effects of adding a second species of particles to the slurry. The mixture of oil and particles is allowed to flow down an incline under the action of gravity. The videos were recorded at the UCLA Applied Math Laboratory.