Simulated three-component granular segregation in a rotating drum

Abstract

Discrete particle simulations are used to model segregation in granular mixtures of three different particle species in a horizontal rotating drum. Axial band formation is observed, with medium-size particles tending to be located between alternating bands of big and small particles. Partial radial segregation also appears; it precedes the axial segregation and is characterized by an inner core region richer in small particles. Axial bands are seen to merge during the long simulation runs, leading to a coarsening of the band pattern; the relocation of particles involved in one such merging event is examined. Overall, the behavior is similar to experiment and represents a generalization of what occurs in the simpler two-component mixture.

7 pages, 11 figures (low resolution color figures only; originals at author's website http://www.ph.biu.ac.il/~rapaport/research/granular.html) [revised version contains extra figures]

References in corpus (4)

• Patterns and Collective Behavior in Granular Media: Theoretical Concepts
• Simulational studies of axial granular segregation in a rotating cylinder
• Radial and axial segregation of granular matter in a rotating cylinder: A simulation study
• The Dynamics of Granular Segregation Patterns in a Long Drum Mixer

Cited by in corpus (1)

• Molecular dynamics simulation: a tool for exploration and discovery using simple models