Longitudinal Vortices in Granular Flows

Preprint

30 August 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0108516

Abstract

We present a new instability observed in rapid granular flows down rough inclined planes. For high inclinations and flow rates, the free surface of the flow experiences a regular deformation in the transverse direction. Measurements of the surface velocities imply that this instability is associated with the formation of longitudinal vortices in the granular flow. From the experimental observations, we propose a mechanism for the longitudinal vortex formation based on the concept of granular temperature.

Keywords

LONGITUDINAL VORTICES
VORTICES IN GRANULAR
INSTABILITY OBSERVED
NEW INSTABILITY
RAPID GRANULAR
GRANULAR FLOWS
FLOW RATES

All Related Versions

Version 1, 2001-08-30, ArXiv
Published version: Physical Review Letters, 86 (26), 5886.

This publication has 0 references indexed in Scilit: