Avalanche Dynamics in Wet Granular Materials

P. Tegzes, T. Vicsek, P. Schiffer

Research output: Contribution to journalArticlepeer-review

81 Scopus citations


We have studied the dynamics of avalanching wet granular media in a rotating drum apparatus. Quantitative measurements of the flow velocity and the granular flux during avalanches allow us to characterize novel avalanche types unique to wet media. We also explore the details of viscoplastic flow (observed at the highest liquid contents) in which there are lasting contacts during flow, leading to coherence across the entire sample. This coherence leads to a velocity-independent flow depth at high rotation rates and novel robust pattern formation in the granular surface.

Original languageEnglish (US)
JournalPhysical review letters
Issue number9
StatePublished - 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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