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Hamburg 2001 – scientific programme

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DY: Dynamik und Statistische Physik

DY 17: Granulare Materie / Kontaktdynamik

DY 17.5: Talk

Monday, March 26, 2001, 16:45–17:00, S 7

Segregation in granular matter under a horizontal swirling excitation — •S. Aumaitre, C.A. Krülle, and I. Rehberg — Experimentalphysik V, Universität Bayreuth, D-95440 Bayreuth

A segregation experiment in a monolayer of granular matter under horizontal swirling motion is presented. In a binary mixture of small spheres and larger disks, the collapse has been studied extensively as a function of the driving frequency. Our measurements have shown a characteristic collapse velocity of disks which increases dramatically with increasing granular temperature. This behavior is explained by several simple statistical arguments.

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