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The effects of topography on mixing rates in controlled exchange flows

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


We examine irreversible mixing in buoyancy-driven baroclinic exchange flows past bottom topography. In all cases the shear between the counter-flowing layers is unstable in the vicinity of a hydraulic control situated above the topography. The overall amount of irreversible turbulent mixing produced by overturning billows during a given time is determined from measurements of vertical density profiles after the exchange. The potential energy changes are used to evaluate the global mixing...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Conference paper
Source: Proceedings of International Symposium on Environmental Hydraulics 2010


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