Vibration-induced climbing of drops

P. Brunet*, J. Eggers, R. D. Deegan

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

130 Citations (Scopus)

Abstract

We report an experimental study of liquid drops moving against gravity, when placed on a vertically vibrating inclined plate, which is partially wetted by the drop. The frequency of vibrations ranges from 30 to 200 Hz, and, above a threshold in vibration acceleration, drops experience an upward motion. We attribute this surprising motion to the deformations of the drop, as a consequence of an up or down symmetry breaking induced by the presence of the substrate. We relate the direction of motion to contact angle measurements. This phenomenon can be used to move a drop along an arbitrary path in a plane, without special surface treatments or localized forcing.

Original languageEnglish
Article number144501
JournalPhysical Review Letters
Volume99
Issue number14
DOIs
Publication statusPublished - 3 Oct 2007

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