Show simple item record

Mixing efficiency in run-down gravity currents

dc.creatorHughes, GO
dc.creatorLinden, Paul Frederick
dc.description.abstractThis paper presents measurements of mixing efficiency of the two counter-flowing gravity currents created by symmetric lock exchange in a channel. The novel feature of this work is that the buoyancy Reynolds number of the currents is higher than in previous experiments, so that the mixing is not significantly affected by viscosity. We find that the mixing efficiency asymptotes to 0.08 at high Reynolds numbers. We present a model of the mixing based on the evolution of idealized mean profiles of velocity and density at the interface between the two currents, the results of which are in good agreement with the measurements of mixing efficiency.
dc.publisherCambridge University Press
dc.publisherJournal of Fluid Mechanics
dc.subjectgravity currents
dc.subjectstratified flows
dc.subjectstratified turbulence
dc.titleMixing efficiency in run-down gravity currents

Files in this item

Hughes_et_al-20 ... _of_Fluid_Mechanics-AM.pdf12.49Mbapplication/pdfView/Open

This item appears in the following Collection(s)

Show simple item record