A Note on Howard’s Model for Turbulent Natural Convection

[+] Author and Article Information
I. F. Davenport, C. Judson King

Department of Chemical Engineering and Lawrence Berkeley Laboratory, University of California, Berkeley, Calif.

J. Heat Transfer 97(3), 476-478 (Aug 01, 1975) (3 pages) doi:10.1115/1.3450406 History: Received August 19, 1974; Online August 11, 2010


A model for turbulent natural convection based on the cyclic destruction and rebuilding of the boundary layer has been proposed by Howard [6]. A close look at more recent experimental data shows that the boundary layer is probably not destroyed as Howard postulated, but is stable with thermals growing upon it and producing the periodicity of the phenomenon. A modified model is proposed.

Copyright © 1975 by ASME
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