Volume 121, Number 4, February 2018
|Number of page(s)||6|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||13 April 2018|
Shaping liquid drops by vibration
1 Department of Mathematics, Faculty of Science Engineering and Technology, Swinburne University of Technology Hawthorn, Victoria, 3122, Australia
2 Department of Theoretical Physics, Brandenburg University of Technology - 03044, Cottbus-Senftenberg, Germany
Received: 10 December 2017
Accepted: 23 March 2018
We present and analyze a minimal hydrodynamic model of a vertically vibrated liquid drop that undergoes dynamic shape transformations. In agreement with experiments, a circular lens-shaped drop is unstable above a critical vibration amplitude, spontaneously elongating in the horizontal direction. Smaller drops elongate into localized states that oscillate with half of the vibration frequency. Larger drops evolve by transforming into a snake-like structure with gradually increasing length. The worm state is long-lasting with a potential to fragment into smaller drops.
PACS: 68.15.+e – Liquid thin films / 47.20.Ma – Interfacial instabilities (e.g., Rayleigh-Taylor) / 05.45.-a – Nonlinear dynamics and chaos
© EPLA, 2018
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