Dynamics of a bouncing droplet onto a vertically vibrated interface

被引：65

作者：

Gilet, T. ^{[1
]}

Terwagne, D. ^{[1
]}

Vandewalle, N. ^{[1
]}

Dorbolo, S. ^{[1
]}

机构：

[1] Univ Liege, GRASP, Phys Dept B5A, B-4000 Liege, Belgium

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.100.167802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Low viscosity (< 100 cSt) silicon oil droplets are placed on a high viscosity (1000 cSt) oil bath that vibrates vertically. The viscosity difference ensures that the droplet is more deformed than the bath interface. Droplets bounce periodically on the bath when the acceleration of its sinusoidal motion is larger than a threshold value. The threshold is minimum for a particular frequency of excitation: droplet and bath motions are in resonance. The bouncing droplet has been modeled by considering the deformation of the droplet and the lubrication force exerted by the air layer between the droplet and the bath. Threshold values are predicted and found to be in good agreement with our measurements.

引用

页数：4

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