Thermocapillary rivulets in the uniformly heated liquid film

S. P. Aktershev, S. V. Alekseenko

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1 Citation (Scopus)

Abstract

The set of equations which describes a non-steady 3D flow of non-isothermal liquid film in the presence of thermocapillary effect is deduced in the long-wave approach. The used model is applicable for moderate Reynolds's numbers Re∼10 and does not imply in advance set the profile of temperature in a film. The linear analysis of a stability of a film in relation to perturbations in spanwise direction is carried out and dispersion relations are gained. Nonlinear development of instability is investigated numerically in cases of 2D and 3D flow and appearance of quasistationary rivulet structure. Influence of dimensionless parameteres on characteristic scales of rivulet structures is revealed.

Original languageEnglish
Article number012023
Number of pages6
JournalJournal of Physics: Conference Series
Volume891
Issue number1
DOIs
Publication statusPublished - 10 Nov 2017

Keywords

  • FALLING FILMS
  • STABILITY
  • WAVES

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