Avalanche Dynamics in Wet Granular Materials
arXiv:cond-mat/0204399 · doi:10.1103/PhysRevLett.89.094301
Abstract
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.
5 pages, 3 figures in color, REVTeX4, for smaller pdfs see http://angel.elte.hu/~tegzes/condmat.html
References in corpus (2)
Cited by in corpus (12)
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- Wet Granular Materials
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- Maximum Angle of Stability of a Wet Granular Pile
- Two scenarios for avalanche dynamics in inclined granular layers
- Wetting of crossed fibers: multiple steady states and symmetry breaking
- Lubrication effects on the flow of wet granular materials
- Unsteady flows and inhomogeneous packing in damp granular heap flows
- Influence of fine particles on the stability of a humid granular pile
- Structural similarity between dry and wet sphere packings
- Tunable capillary-induced attraction between vertical cylinders
- Fluctuations of particle motion in granular avalanches - from the microscopic to the macroscopic scales