Thermocapillary rupture and contact line dynamics in the heated liquid layers

Dmitry Yu Kochkin, Dmitry V. Zaitsev, Oleg A. Kabov

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The experimental study of the rupture of a horizontal liquid layer placed on a stainless-steel substrate non-uniformly heated from below was conducted. Deformation profiles in the liquid film were measured using the confocal Micro-Epsilon sensor. Propagation of a dry spot over the substrate surface was studied using an optical schlieren system coupled with a high-speed camera. The initial thickness of the liquid film varied from 300 to 1100 µm. It was found that with an increase in the liquid layer thickness, the threshold substrate temperature for rupture increases. At the initial stage of film rupture, the contact line velocity has a maximum increasing with the initial film thickness.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalInterfacial Phenomena and Heat Transfer
Volume8
Issue number1
DOIs
Publication statusPublished - 1 Jan 2020

Keywords

  • Confocal method
  • Contact line
  • Dry spot
  • Evaporation
  • High-speed visualization
  • Liquid film
  • Thermocapillary rupture
  • high-speed visualization
  • contact line
  • SPOT
  • FLOW
  • liquid film
  • dry spot
  • FILM THICKNESS
  • evaporation
  • confocal method
  • thermocapillary rupture

Fingerprint

Dive into the research topics of 'Thermocapillary rupture and contact line dynamics in the heated liquid layers'. Together they form a unique fingerprint.

Cite this