Birth and sudden death of a granular cluster

Research output: Chapter in Book/Report/Conference proceedingChapterAcademic


Granular material is vibro-fluidized in N connected compartments. For sufficiently strong shaking the particles are statistically uniformly distributed over the compartments, but if the shaking intensity is lowered this uniform distribution gives way to a clustered state. The clustering transition is experimentally shown to be of 2nd order for N = 2 compartments and of 1st order for . In particular, the latter is hysteretic, involves long-lived transient states, and exhibits a striking lack of time reversibility. In the strong shaking regime, a cluster breaks down very abruptly and in its further decay shows anomalous diffusion, with the length scale going as t1/3 rather than the standard t1/2. We focus upon the self-similar nature of this process. The observed phenomena are all accounted for within a flux model.
Original languageEnglish
Title of host publicationGranular Gas Dynamics
EditorsThorsten Pöschel, Nikolai Brilliantov
Place of PublicationBerlijn
Number of pages12
ISBN (Electronic)978-3-540-39843-1
ISBN (Print)978-3-642-05757-1, 978-3-540-20110-6
Publication statusPublished - 2003

Publication series

NameLecture Notes in Physics
ISSN (Print)0075-8450
ISSN (Electronic)1616-6361


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