Dresden 2011 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 10: Posters I

DY 10.16: Poster

Montag, 14. März 2011, 17:00–19:00, P4

Translational Granular Brownian Motor — •Chih-Wei Peng, Max Neudecker, Nabiha Saklayen, Johannes Blaschke, Jürgen Vollmer, and Matthias Schröter — Max-Planck-Institut für Dynamik und Selbstorganisation, Göttingen, Germany

We construct a motor driven by the random motion of granular particles. In this setup, a wedge, which is allowed only translational freedom along one axis, is placed in granular gas. According to the idea of brownian motor, the time reversal symmetry-breaking due to the inelastic collisions between particles and wedge along with the symmetry breaking of rotational invariance implies that the wedge could have a preferred drift direction[1]. In addition, we also consider the effect due to the anisotropy of particle velocity distribution on different axes, which could largely change the drift velocity.

References

[1] Cleuren, B. and Van den Broeck, C. Europhys. Lett. 77, 50003 (2007).