Flow patterns and critical criteria of thermally stratified shear flow in braided rivers
Sign Up to like & getrecommendations! Published in 2017 at "Water science and engineering"
DOI: 10.1016/j.wse.2017.09.003
Abstract: Abstract Flow characteristics of thermally stratified shear flow in braided rivers are particularly complicated and poorly understood. In this study, a series of typical flow patterns was examined and their critical criteria were determined. Four… read more here.
Keywords: thermally stratified; stratified shear; shear flow; flow patterns ... See more keywords
Stability, intermittency and universal Thorpe length distribution in a laboratory turbulent stratified shear flow
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.48
Abstract: Stratified shear flows occur in many geophysical contexts, from oceanic overflows and river estuaries to wind-driven thermocline layers. We explore a turbulent wall-bounded shear flow of lighter miscible fluid into a quiescent fluid of higher… read more here.
Keywords: stratified shear; thorpe length; intermittency; stability ... See more keywords
Hairpin vortices and highly elongated flow structures in a stably stratified shear layer
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DOI: 10.1017/jfm.2019.577
Abstract: Turbulent structures in stably stratified shear layers are studied with direct numerical simulation. Flow visualization confirms the existence of hairpin vortices and highly elongated structures with positive and negative velocity fluctuations, whose streamwise lengths divided… read more here.
Keywords: stably stratified; vortices highly; stratified shear; structures stably ... See more keywords
The viscous Holmboe instability for smooth shear and density profiles
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DOI: 10.1017/jfm.2020.340
Abstract: The Holmboe wave instability is one of the classic examples of a stratified shear instability, usually explained as the result of a resonance between a gravity wave and a vorticity wave. Historically, it has been… read more here.
Keywords: linear stability; stratified shear; holmboe instability; viscous holmboe ... See more keywords