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

Vladimir Sergeevich Ajaev, Elizaveta Ya Gatapova, Oleg A. Kabov

Research output: Contribution to journalArticle

6 Citations (Scopus)

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 languageEnglish
Pages (from-to)33-37
Number of pages5
JournalMicrogravity Science and Technology
Volume24
Issue number1
DOIs
Publication statusPublished - 1 Jan 2012

Fingerprint

Liquid films
grooves
Liquid
Thin Liquid Films
Linear stability analysis
Van Der Waals
Linear Stability Analysis
Stability Theory
Linear Stability
liquids
Gases
gases
Nonlinear equations
Film thickness
Nonlinear Equations
solid surfaces
Thin films
Numerical Simulation
nonlinear equations
Computer simulation

Keywords

  • Disjoining pressure
  • Film rupture
  • Structured surface

ASJC Scopus subject areas

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

Cite this

Stability of a liquid film on a surface with periodic array of gas-filled grooves. / Ajaev, Vladimir Sergeevich; Gatapova, Elizaveta Ya; Kabov, Oleg A.

In: Microgravity Science and Technology, Vol. 24, No. 1, 01.01.2012, p. 33-37.

Research output: Contribution to journalArticle

Ajaev, Vladimir Sergeevich ; Gatapova, Elizaveta Ya ; Kabov, Oleg A. / Stability of a liquid film on a surface with periodic array of gas-filled grooves. In: Microgravity Science and Technology. 2012 ; Vol. 24, No. 1. pp. 33-37.
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