Low Temperature Physics: 38, 991 (2012); https://doi.org/10.1063/1.4767622 (10 pages)
Fizika Nizkikh Temperatur: Volume 38, Number 11 (November 2012), p. 1257-1268 ( to contents , go back )
Stability and reconstruction of inversed gravity films (Review Article)
G. Kolmakov1, K. Kono2, A. Levchenko3, P. Leiderer4, and V. Shikin3
1New York City College of Technology, Brooklyn, New York 11201, USA
2RIKEN, Hirosawa 2-1, Wako 351-0198, Japan
3Institute of Solid State Physics RAS, Chernogolovka, Moscow district 142432, Russian Federation
4Universitet Konstanz, Postfach 675, D-78457
Received June 13, 2012
The paper traces retrospectively the development of the concept of stability of liquid films formed on downward facing surfaces (inversed gravity films). The original scenario of the instability development proposed by Rayleigh does not contain the concept of critical state after reaching which the flat stable inversed gravity film transforms into a corrugated modification whas the film thickness is slightly increased. Both the general understanding of the events occurred at the critical point and the possibility of discussing the full scale instability including its definition and various scenarios of inversed gravity films reconstructions have been developed only recently. The aim of this study is to outline a consistent picture of droplet instability at its different stages starting from the threshold point and up to the formation of a stationary corrugation (surface shape reconstruction). The calculational part of the paper is complemented with a series of specially performed experiments which confirm the main predictions of the theory.
PACS: 47.10.ad Navier–Stokes equations;
Key words: interfacial instability, dispersion law, surface tension, surface reconstruction.