title: Pattern formation in a rotating suspension of non-Brownian settling particles.
abstract: We report band formation and other pattern formation for a settling suspension of uniform non-Brownian particles in a completely filled horizontal rotating cylinder. The system shows a series of sharp pattern changes that are mapped out as a function of the rotation period and suspension viscosity. The experiment suggests that a large number of patterns and rich dynamics result from the interplay among the viscous drag, and gravitational and centrifugal forces.
authors.affiliation: Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
authors.forename: W R
authors.initials: WR
authors.lastname: Matson
authors.forename: B J
authors.initials: BJ
authors.lastname: Ackerson
authors.forename: P
authors.initials: P
authors.lastname: Tong