GEG Group
CPG
TANGO
ETH Zurich

Ring-like size segregation in vibrated cylinder with a bottleneck

2005Journal ArticlePhysics Letters A 341, pp. 278284

Abstract

In this Letter, a ring-like segregation pattern of bi-dispersed granular material in a vibrated bottleneck-cylinder is presented. The driving frequency can greatly affect the strength and structure of the convection roll and segregation pattern. The position and height of the ring (cluster of big beads) can be adjusted by altering the vibration frequency. And a heuristic theory is developed to interpret the ring's position dependence on driving frequency.