Numerical modeling of the tangential stress effects on convective fluid flows in an open cavity

Olga N. Goncharova, Oleg A. Kabov

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Mathematical and numerical modeling of convection of fluids in a domain with a free boundary being subjected to an effect of a gas phase is widely investigated nowadays. When a gas medium generates on the free boundary the tangential stresses effected by evaporation, the additional characteristics of the convective flows should be studied. The new experiments in the frame of the scientific project CIMEX of the European Space Agency demand a mathematical modeling and preliminary investigation of the different features of the fluid flows. A stationary problem of convection in a rectangular cavity with a non-deformed thermocapillary boundary under conditions of gravity and zero-gravity is considered. The tangential forces created by the external gas flows on the free boundary are taken into account. Different kinds of a dependence of the tangential stresses on a longitudinal coordinate is investigated numerically. The simulations are carried out for a liquid filled cavities with different aspect ratio. The paper presents topology of the convective fluid flows in the conditions corresponding qualitatively to the CIMEX experiment.

Original languageEnglish
JournalMicrogravity Science and Technology
Volume21
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 1 Aug 2009

    Fingerprint

Keywords

  • Convection
  • Free boundary
  • Gravity
  • Mathematical modeling
  • Microgravity
  • Numerical experiments
  • Tangential stresses

ASJC Scopus subject areas

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

Cite this