Article (Scientific journals)
Resonant and rolling droplet
Dorbolo, Stéphane; Terwagne, Denis; Vandewalle, Nicolas et al.
2008In New Journal of Physics, 10
Peer Reviewed verified by ORBi
 

Files


Full Text
2008_dorbolo_NJP.pdf
Publisher postprint (1.32 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Abstract :
[en] When an oil droplet is placed on a quiescent oil bath, it eventually collapses into the bath due to gravity. The resulting coalescence may be eliminated when the bath is vertically vibrated. The droplet bounces periodically on the bath, and the air layer between the droplet and the bath is replenished at each bounce. This sustained bouncing motion is achieved when the forcing acceleration is higher than a threshold value. When the droplet has a sufficiently low viscosity, it significantly deforms: spherical harmonic Y-1(m) modes are excited, resulting in resonant effects on the threshold acceleration curve. Indeed, a lower acceleration is needed when I modes with m = 0 are excited. Modes m not equal 0 are found to decrease the bouncing ability of the droplet. A break of degeneracy is observed for the m parameter. In particular, when the mode 1 = 2 and m = 1 is excited, the droplet rolls on the vibrated surface without touching it, leading to a new self-propulsion mode.
Disciplines :
Physics
Author, co-author :
Dorbolo, Stéphane  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Terwagne, Denis ;  Université de Liège - ULiège > Département de physique > Physique statistique
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Gilet, Tristan  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Language :
English
Title :
Resonant and rolling droplet
Publication date :
18 November 2008
Journal title :
New Journal of Physics
ISSN :
1367-2630
Publisher :
Institute of Physics, Bristol, United Kingdom
Volume :
10
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 17 September 2009

Statistics


Number of views
103 (17 by ULiège)
Number of downloads
139 (12 by ULiège)

Scopus citations®
 
47
Scopus citations®
without self-citations
32
OpenCitations
 
44

Bibliography


Similar publications



Contact ORBi