title: 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.
authors.affiliation: Physics Department, Bar-Ilan University, Ramat-Gan 52900, Israel. rapaport@mail.biu.ac.il
authors.forename: D C
authors.initials: DC
authors.lastname: Rapaport