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Effects of topography on the cumulative mixing efficiency in exchange flows

Prastowo, Tjipto; Griffiths, Ross; Hughes, Graham; Hogg, Andrew

Description

[1] Buoyancy-driven, hydraulically controlled two-layer exchange flows were established in a laboratory flume with a lateral constriction and a bottom sill placed at its midpoint. The shear flow was unstable within the constriction, and the overall amount of turbulent mixing was determined from measurements of vertical density profiles after the exchange. The potential energy changes are used to evaluate the mixing efficiency (or flux Richardson number), defined as the fraction of the available...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/54475
Source: Journal of Geophysical Research
DOI: 10.1029/2008JC005152

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