Single-particle model for a granular ratchet

Details Single-particle model for a granular ratchet Single-particle model for a granular ratchet

2003-12-16

arxiv.org/abs/cond-mat/0312412v1

Physica A 342, 22-28 (2004).

Physics

Condensed Matter

Soft Condensed Matter

7 pages, 3 figures, submitted to Physica A

Scientific paper

10.1016/j.physa.2004.04.055

A simple model for a granular ratchet corresponding to a single grain bouncing off a vertically vibrating sawtooth-like base is studied. Depending on the vibration strength, the sawtooth roughness and the restitution coefficient, horizontal transport in both the preferred and unfavoured directions is observed. A phase diagram indicating the regions in parameter space where each of the three possible regimes (no current, normal current, and current reversal) occurs is presented.

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