Multiscale Clustering in Granular Surface Flows - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Physical Review Letters Year : 2002

Multiscale Clustering in Granular Surface Flows


We investigate steady granular surface flows in a rotating drum and demonstrate the existence of rigid clusters of grains embedded in the flowing layer. These clusters appear to be fractal and their size is power law distributed from the grain size scale up to the thickness of the flowing layer. The implications of the absence of a characteristic length scale on available theoretical models of dense granular flows are discussed. Finally, we suggest a possible explanation of the difference between velocity profiles observed in surface flows and in flows down a rough inclined plane.
Fichier principal
Vignette du fichier
PhysRevLett.89.034301.pdf (390.91 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

cea-01373873 , version 1 (29-09-2016)



Daniel Bonamy, François Daviaud, Louis Laurent, Marco Bonetti, Jean-Philippe Bouchaud. Multiscale Clustering in Granular Surface Flows. Physical Review Letters, 2002, 89, pp.034301. ⟨10.1103/PhysRevLett.89.034301⟩. ⟨cea-01373873⟩
58 View
150 Download



Gmail Facebook Twitter LinkedIn More