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Convective motion in a vibrated granular layer
Authors: Garcimartin, A. (Ángel)
Maza, D. (Diego)
Ilquimiche, J.L. (J. L.)
Zuriguel, I. (Iker)
Issue Date: 2002
Citation: A.Garcimartín, D. Maza, J. L. Ilquimiche and I. Zuriguel, "Convective motion in a vibrated granular layer". Phys. Rev. E, vol. 65, p. 031303, (2002).
Velocity measurements are presented for a vertically shaken granular layer. For frequencies around 110 Hz and accelerations larger than gravity, the layer develops a convective motion in the form of one or more rolls. The velocity of the grains near the wall has been measured. It grows linearly with the acceleration, then the growth rate slows down. A rescaling with the amplitude of the wall velocity and the height of the granular layer makes all data collapse in a single curve.
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