Heat transfer from a local heat source to subcooled liquid film

O. A. Kabov, E. A. Chinnov

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

An experimental investigation is performed of heat transfer from a local heat source to films of water and low-boiling dielectric liquid that flow down a vertical plate by gravity. The liquids are substantially subcooled. In the case of perfluorotriethylamine flow, regular structures are formed in the film at the threshold value of the heat flux density. After the heated layer of liquid comes to the film surface, three characteristic modes of heat transfer are observed, which are associated with the variation of the modes of liquid flow caused by thermocapillary convection. At low values of the Reynolds number of the film, a specific form of critical heat transfer is observed, which is characterized by disintegration of the jet into droplets and their separation from the heater.

Original languageEnglish
Pages (from-to)703-713
Number of pages11
JournalHigh Temperature
Volume39
Issue number5
DOIs
Publication statusPublished - Sep 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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