Granular fingering patterns in horizontal rotating cylinders

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

We performed systematic experiments involving a thin layer of a granular medium flowing within a horizontally rotating cylinder. The cylinder aspect ratio, the particle size, and the percentage of cylinder volume occupied by particles were varied. The flow phenomena observed in these experiments were diverse and complicated. In particular, in most cases, frontal fingers were found. Dimensional analysis was used to gain insight regarding the mechanisms underlying the formation of these fingers. This analysis shows that the dimensionless granular wavelength can be expressed as a function of cylinder aspect ratio, granular Reynolds number, granular Froude number, and granular filling percentage.

Original languageEnglish (US)
Pages (from-to)462-470
Number of pages9
JournalPhysics of Fluids
Volume14
Issue number2
DOIs
StatePublished - Jan 1 2002

ASJC Scopus subject areas

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Fingerprint Dive into the research topics of 'Granular fingering patterns in horizontal rotating cylinders'. Together they form a unique fingerprint.

Cite this