Thermocapillary convection in a free liquid layer in the presence of an adjacent gas flow

Olga N. Goncharova, Yulia O. Kabova, Oleg A. Kabov

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The nonstationary motions of a free heat-conducting liquid layer under conditions of weightlessness are investigated analytically and numerically. To describe the dynamics of a layer with free boundaries subjected to nonhomogeneous heating and to the action of an external gas phase, a special class of the solutions of the Navier-Stokes equations is used. The 2D solutions are characterized by a linear dependence of the longitudinal component of velocity on the longitudinal coordinate. The results allow demonstrating a behavior of free liquid films and to control the mechanisms of the layer deformations at the normal and anomalous thermocapillary effects.

Original languageEnglish
Pages (from-to)389-396
Number of pages8
JournalComputational Thermal Sciences
Volume3
Issue number5
DOIs
Publication statusPublished - 2011

Fingerprint

Thermocapillary Convection
Weightlessness
Liquid films
Gas Flow
Navier Stokes equations
gas flow
Flow of gases
convection
Adjacent
Gases
Liquid
Heating
Liquids
liquids
weightlessness
Linear dependence
free boundaries
Free Boundary
Navier-Stokes equation
Anomalous

Keywords

  • Cocurrent gas flow
  • Convection
  • Exact solutions
  • Free boundary

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Computational Mathematics
  • Fluid Flow and Transfer Processes
  • Surfaces and Interfaces

Cite this

Thermocapillary convection in a free liquid layer in the presence of an adjacent gas flow. / Goncharova, Olga N.; Kabova, Yulia O.; Kabov, Oleg A.

In: Computational Thermal Sciences, Vol. 3, No. 5, 2011, p. 389-396.

Research output: Contribution to journalArticle

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AB - The nonstationary motions of a free heat-conducting liquid layer under conditions of weightlessness are investigated analytically and numerically. To describe the dynamics of a layer with free boundaries subjected to nonhomogeneous heating and to the action of an external gas phase, a special class of the solutions of the Navier-Stokes equations is used. The 2D solutions are characterized by a linear dependence of the longitudinal component of velocity on the longitudinal coordinate. The results allow demonstrating a behavior of free liquid films and to control the mechanisms of the layer deformations at the normal and anomalous thermocapillary effects.

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