Stability of a liquid film on a surface with periodic array of gas-filled grooves

Abstract

We develop a linear stability theory for a thin liquid film on a structured solid surface with periodic grooves filled by a gas. The main mechanism driving the instability is due to the London-van der Waals disjoining pressure. The grooves are shown to have a destabilizing effect on the film. The results of linear stability analysis are compared with numerical simulations based on the strongly nonlinear equation for film thickness.

Original language	English
Pages (from-to)	33-37
Number of pages	5
Journal	Microgravity Science and Technology
Volume	24
Issue number	1
DOIs	https://doi.org/10.1007/s12217-011-9288-z
Publication status	Published - 1 Jan 2012

Keywords

Disjoining pressure
Film rupture
Structured surface

ASJC Scopus subject areas

Modelling and Simulation
Engineering(all)
Physics and Astronomy(all)
Applied Mathematics

Access to Document

10.1007/s12217-011-9288-z

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Ajaev, V. S., Gatapova, E. Y., & Kabov, O. A. (2012). Stability of a liquid film on a surface with periodic array of gas-filled grooves. Microgravity Science and Technology, 24(1), 33-37. https://doi.org/10.1007/s12217-011-9288-z

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