Journal article

Mixing in flows down gentle slopes into stratified environments

PG Baines

JOURNAL OF FLUID MECHANICS | CAMBRIDGE UNIV PRESS | Published : 2001

Abstract

Observations of the flow of dense fluid into uniformly density-stratified environmets down plane slopes with small inclination to the horizontal (≤ 20°) are described, and a quantitative model for such flows is presented. In these experiments the dense fluid is released at the top of the slope for a finite period of time. The resulting downslope gravity current, or downflow, has uniform thickness with a distinct upper boundary, until it approaches its level of neutral density where the fluid leaves the proximity of the slope. Turbulent transfers of mass and momentum occur across the upper boundary, causing a continuous loss of fluid from the down flow in most cases, and associated loss of mo..

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University of Melbourne Researchers