Volume 62, Number 4, May 2003
|Page(s)||491 - 497|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||01 May 2003|
Pattern formation in a rotating aqueous suspension
Experimentalphysik V, Universität Bayreuth -
D-95440 Bayreuth, Germany
Accepted: 10 March 2003
A novel pattern-forming instability in a mixture of a granular material and water in a horizontal rotating drum is experimentally investigated. The particles accumulate in radial symmetric rings separated by pure water. The transition between the homogeneous state and the structured state is hysteretic. The transition point is extrapolated from the growth rates of the chain of rings. The trajectory of a single particle is discussed to estimate an upper boundary for the transition point.
PACS: 45.70.Mg – Granular flow: mixing, segregation and stratification / 45.70.Qj – Pattern formation / 05.65.+b – Self-organized systems
© EDP Sciences, 2003
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