Time resolved particle dynamics in granular convection
نویسنده
چکیده
We present an experimental study of the movement of individual particles in a layer of vertically shaken granular material. High-speed imaging allows us to investigate the motion of beads within one vibration period. This motion consists mainly of vertical jumps, as in the Inelastic Bouncing Ball Model, and a global ordered drift. The analysis of the movement reveals that friction of beads against walls is the underlying mechanism of convection.
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تاریخ انتشار 2004