Thermal patterns in evaporating liquid

Carlo S. Iorio, Oleg A. Kabov, Jean Claude Legros

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

In this paper, some of the preparatory experiments of the ESA sponsored space program CIMEX-1 are presented. A liquid layer of variable thickness is subject to a flow of inert gas. The non-uniform evaporation induced by the gas flow creates a temperature gradient parallel to the interface triggering in that way thermocapillary convection. The combined action of evaporation, thermocapillarity and gravity has been not completely clarified both theoretically and experimentally. The experiment presented in this work concerns a liquid layer of ethanol of 2.2 mm thickness in presence of a mass flow of Nitrogen whose intensity varies in the range of hundreds of milliliter per minute. The experiments were performed at an initial liquid temperature of 21°C. The patterns observed are strongly dependent on the flow rate of inert gas. A change in the instability patterns has been observed for a gas flow of about 1.7 l/min.

Original languageEnglish
Pages (from-to)27-29
Number of pages3
JournalMicrogravity Science and Technology
Volume19
Issue number3-4
DOIs
Publication statusPublished - 1 Jan 2007
Externally publishedYes

Fingerprint

Liquid
Gas Flow
Inert gases
Evaporation
gas flow
Flow of gases
rare gases
Liquids
liquids
Thermocapillary Convection
evaporation
Experiment
space programs
Variable Thickness
Experiments
mass flow
Ethanol
European Space Agency
Thermal gradients
Flow Rate

ASJC Scopus subject areas

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

Cite this

Thermal patterns in evaporating liquid. / Iorio, Carlo S.; Kabov, Oleg A.; Legros, Jean Claude.

In: Microgravity Science and Technology, Vol. 19, No. 3-4, 01.01.2007, p. 27-29.

Research output: Contribution to journalArticle

Iorio, Carlo S. ; Kabov, Oleg A. ; Legros, Jean Claude. / Thermal patterns in evaporating liquid. In: Microgravity Science and Technology. 2007 ; Vol. 19, No. 3-4. pp. 27-29.
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