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

Keywords

  • Disjoining pressure
  • Film rupture
  • Structured surface

ASJC Scopus subject areas

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

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