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Updated: Oct 25, 2025

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
Published on: February 22, 2018
Translational-rotational coupling during the scattering of a frictional sphere from a flat surface
Yueran Wang1, Peter Harrowell1
1School of Chemistry, University of Sydney, Sydney 2006, New South Wales, Australia.
Abstract:
At a macroscopic level, concepts such as "top spin," "back spin," and "rolling" are commonly used to describe the collision of balls and surfaces. Each term refers to an aspect of the coupling of rotational motion during the collision of a spherical particle with a planar surface. In this paper, we explore the mechanisms of energy transfer involving the collision of a rotating sphere and a surface using a model of frictional interactions developed for a granular material. We present explicit analytical treatments for the scattering and derive expressions for two important limiting classes: energy conserving collisions and collisions subject to rapid transverse dissipation.
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