Note on the Analysis of Plunging of Density Flows
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VIEW THE REPLYPublication: Journal of Hydraulic Engineering
Volume 133, Issue 6
Abstract
This note is devoted to the correction of an error in a calculation contained in a classical published paper on the plunging of river flows as they enter lakes or reservoirs. The correction of the error provides a felicitous result, according to which not only the ratio of underflow thickness just after plunging to depth just before plunging, but also the densimetric Froude numbers both just before and just after plunging are all specified as a function of a single parameter. This single parameter characterizes the tendency of plunging to entrain ambient water into the density underflow.
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Acknowledgments
The research for this paper was funded by the National Center for Earth-Surface Dynamics, which is in turn funded by the Science and Technology Centers (STC) program of the National Science Foundation. Svetlana Kostic provided several helpful comments.
References
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Singh, B., and Shah, C. R. (1971). “Plunging phenomenon of density currents in reservoirs.” Houille Blanche, 26(1), 59–64.
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Information
Published In
Journal of Hydraulic Engineering
Volume 133 • Issue 6 • June 2007
Pages: 690 - 694
Copyright
© 2007 ASCE.
History
Received: Dec 31, 2002
Accepted: Sep 18, 2006
Published online: Jun 1, 2007
Published in print: Jun 2007
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