Kotsovinos, Nikolas E. and List, E. John (1977) Plane turbulent buoyant jets. Part 1. Integral properties. Journal of Fluid Mechanics, 81 (1). pp. 25-44. ISSN 0022-1120 http://resolver.caltech.edu/CaltechAUTHORS:KOTjfm77a
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An integral technique suggested for the analysis of turbulent jets by Corrsin & Uberoi (1950) and Morton, Taylor & Turner (1956) is re-examined in an attempt to improve the description of the entrainment. It is determined that the hypothesis of Priestley & Ball (1955), that the entrainment coefficient is a linear function of the jet Richardson number, is reasonable, and that two empirically determined plume parameters are sufficient to describe the transition of buoyant jets to plumes. The results of a series of experiments in which both time-averaged velocity and time-averaged temperature profiles were recorded in a substantial number of plane turbulent buoyant jets of varying initial Richardson numbers are used to verify the basic ideas. In addition, measurements of the mean tracer flux in a series of buoyant jets indicate that as much as 40% of the transport in plumes is by the turbulent flux.
|Additional Information:||Copyright © 1977 Cambridge University Press. Reprinted with permission. (Received 28 January 1976 and in revised form 9 June 1976) The authors gratefully acknowledge the support of this work by the U.S. National Science Foundation, more recently through Grant no. ENG75-02985 and earlier by Grant no. GK-35774X.|
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|Deposited On:||04 Oct 2006|
|Last Modified:||26 Dec 2012 09:04|
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