Volume 84, Number 1, October 2008
|Number of page(s)||5|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||19 September 2008|
Experimental investigation about cyclic oscillations of a binary vibrofluidized granular mixture in N connected compartments
College of Civil Engineering and Mechanics, Lanzhou University - Lanzhou 730000, PRC
2 School of Civil Engineering, Lanzhou Jiaotong University - Lanzhou 730070, PRC
Corresponding author: firstname.lastname@example.org
Accepted: 25 August 2008
The cyclic oscillation behavior (granular clock) of a vibrofluidized granular gas is experimentally investigated in two kinds of N-compartment systems (cyclic and non-cyclic). For a cyclic system, the gas clusters cyclically into one of the compartments in a random order and the interval of the clustering transition has a tendency to decrease with the evolution of time. But for a non-cyclic system, the order and interval of the clustering are invariable. Specially, in a certain transition range a remarkable intermittent clustering behavior is observed at first in our experiments —the granular gas undergoing a cyclic oscillation shows a sudden uniform state and keeps it for a long time until the new cyclic cluster state emerges.
PACS: 45.70.Mg – Granular flow: mixing, segregation and stratification / 05.45.-a – Nonlinear dynamics and chaos / 47.54.-r – Pattern selection; pattern formation
© EPLA, 2008
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