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Abstract:

We report on experiments studying the statistical properties of the motion of balls on a bumpy surface. This motion is found to be diffusive. In the direction of the mean flow, the coefficient of diffusion is found to attain a constant value, independent of the size of the ball and the inclination angle. The diffusion transverse to the mean flow is characterized by a coefficient which decreases with the inclination of the plane, and scales with the size of moving ball.

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Received: 13 March 1997 / Revised: 10 December 1997 / Accepted: 17 February 1998

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Samson, L., Ippolito, I., Batrouni, G. et al. Diffusive properties of motion on a bumpy plane. Eur. Phys. J. B 3, 377–385 (1998). https://doi.org/10.1007/s100510050325

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  • DOI: https://doi.org/10.1007/s100510050325

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