Dynamics of axial segregation in granular slurries: Parallel experiments and influence of aspect ratio and periodic tilting

Stanley J. Fiedor*, Paul Umbanhowar, Julio M Ottino

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

An efficient technique for conducting rotating tumbler experiments in parallel is introduced and used to study the effect of tumbler length and periodic tilting of the tumbler on axial segregation. When rotated, bidisperse granular slurries segregate into what appear at the surface to be alternating bands of larger and smaller particles. The number of bands increases linearly with tumbler length while the fractional area occupied by each type of band is constant. Periodic tilting of the rotation axis induces a periodic axial flow of particles in the flowing layer. For the range of tilt angle amplitudes investigated (0 -3. 5 ), the number of bands decreases with increasing angle, but the rate of merging and the fractional area of bands rich in smaller particles are unaffected.

Original languageEnglish (US)
Article number041303
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume73
Issue number4
DOIs
StatePublished - May 15 2006

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Fingerprint

Dive into the research topics of 'Dynamics of axial segregation in granular slurries: Parallel experiments and influence of aspect ratio and periodic tilting'. Together they form a unique fingerprint.

Cite this