Fundamental characteristics of granular flow under variable g-levels

Richard M Lueptow*, Tim Arndt, Antje Brucks, Julio M Ottino

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Our understanding of gravity-driven granular flows is based almost exclusively on experiments under Earth's gravity. Here we show that the dynamic angle of repose, or slope, of the flowing shear layer in the canonical case of granular flow in a tumbler of radius r rotating at ω is properly characterized by the Froude number, Fr = ω2 r/g, when the acceleration g is varied over a wide range in a large centrifuge. Creeping motion of the subsurface flow is also affected by the g-level. Copyright ASCE 2006.

Original languageEnglish (US)
Title of host publicationEarth and Space 2006 - Proceedings of the 10th Biennial International Conference on Engineering, Construction, and Operations in Challenging Environments
Number of pages1
Volume2006
DOIs
StatePublished - Dec 28 2006
EventEarth and Space 2006 - 10th Biennial International Conference on Engineering, Construction, and Operations in Challenging Environments - League City/Houston, TX, United States
Duration: Mar 5 2006Mar 8 2006

Other

OtherEarth and Space 2006 - 10th Biennial International Conference on Engineering, Construction, and Operations in Challenging Environments
CountryUnited States
CityLeague City/Houston, TX
Period3/5/063/8/06

ASJC Scopus subject areas

  • Engineering(all)

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