Collective motion of granular matter subjected to swirling excitation

Zhao SC, Pöschel T (2022)

Publication Type: Journal article

Publication year: 2022


Book Volume: 105

DOI: 10.1103/PhysRevE.105.L022902


A two-dimensional granular packing under horizontally circular shaking exhibits various collective motion
modes where nonuniform density distribution and correlated dynamics are present. For intermediate packing
density and oscillation amplitude, a condensed phase travels around the container’s side wall in the clockwise
direction, while the oscillation itself is set anticlockwise. Further increasing the packing density towards that of
hexagonal packing, the whole packing rotates collectively in the clockwise direction. The core of the packing
rotates as a solid and is separated from the boundary by a fluid-like layer. Both motion modes are associated
with the asymmetric motion of particles close to the side wall in one oscillation cycle, where the dependence of
particle velocity on the local density plays a key role.

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How to cite


Zhao, S.-C., & Pöschel, T. (2022). Collective motion of granular matter subjected to swirling excitation. Physical Review E, 105.


Zhao, Song-Chuan, and Thorsten Pöschel. "Collective motion of granular matter subjected to swirling excitation." Physical Review E 105 (2022).

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