Thermosolutal Inducement of No-Slip Free Surfaces in Combined Marangoni-Buoyancy Driven Cavity Flows

[+] Author and Article Information
J. R. Keller, T. L. Bergman

Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712

J. Heat Transfer 112(2), 363-369 (May 01, 1990) (7 pages) doi:10.1115/1.2910386 History: Received November 27, 1988; Revised June 19, 1989; Online May 23, 2008


The presence of a diffusing surfactant in combined surface tension-buoyancy driven convection is studied numerically to examine its influence on the flow structure and heat transfer characteristics of a fluid contained within a cavity. By accounting for the surface tension dependence on both temperature and surfactant concentration, the free surface may become stagnant. As a result, the high local and overall heat transfer rates at the cold wall, which are associated with thermal surface tension-augmented buoyancy driven flows, are decreased.

Copyright © 1990 by The American Society of Mechanical Engineers
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