Localized Subharmonic Waves in a Circularly Vibrated Granular Bed

Titelangaben

Götzendorfer, Andreas ; Kruelle, Christof A. ; Rehberg, Ingo ; Svenšek, Daniel:
Localized Subharmonic Waves in a Circularly Vibrated Granular Bed.
In: Physical Review Letters. Bd. 97 (2006) Heft 19 . - 198001.
ISSN 1079-7114
DOI: https://doi.org/10.1103/PhysRevLett.97.198001

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Abstract

Localized period-doubling waves arise in circularly shaken granular beds contained in an annular channel. These solitary wave packets are accompanied by a locally increased particle density. The width and velocity of the granular wave pulse are measured as a function of the bed height. A continuum model for the material distribution, based on the measured granular transport velocity as a function of the bed thickness, captures the essence of the experimental findings.