Loading...
Please wait, while we are loading the content...
Similar Documents
Emergence of Kelvin-Helmholtz instabilities in shallow mixing layers: An experimental study
| Content Provider | Scilit |
|---|---|
| Author | Proust, S. Berni, C. Nikora, V. I. |
| Copyright Year | 2020 |
| Description | Free-surface shallow mixing layers behind a splitter plate were studied in a flume of rectangular cross-section consisting of a bed and sidewalls made of glass. The focus is on the effects on the emergence of horizontal Kelvin-Helmholtz-type coherent structures (KHCSs) of vertical flow confinement (i.e., flow depth) and dimensionless velocity shear $λ=(U_{X2}$ - $U_{X1}$) / $(U_{X2}$ + $U_{X1}$) where $U_{X1}$ and $U_{X2}$ are two flow velocities characterizing the low-speed stream and high-speed stream, respectively. Two flow depths were tested, with the λ-value at the flume entrance varying between 0.1 to 0.8, with a threshold value λ = 0.3 needed for the emergence of KHCSs in compound open-channel flows being inside this range. This paper reports new data that provide a better insight in the interplay between the constraining effect of flow depth, damping effect of three-dimensional bed-induced turbulence, and triggering effect of dimensionless shear on the formation of KHCSs. Book Name: River Flow 2020 |
| Related Links | https://content.taylorfrancis.com/books/download?dac=C2020-0-17797-6&isbn=9781003110958&doi=10.1201/b22619-14&format=pdf |
| Ending Page | 83 |
| Page Count | 8 |
| Starting Page | 76 |
| DOI | 10.1201/b22619-14 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2020-08-27 |
| Access Restriction | Open |
| Subject Keyword | Book Name: River Flow 2020 Fluids and Plasmas Physics Water Science and Technology |
| Content Type | Text |
| Resource Type | Chapter |
