分层流
分层流
机械
剪切(地质)
剪切流
物理
不对称
不稳定性
亥姆霍兹自由能
分层(种子)
地质学
经典力学
湍流
热力学
岩石学
量子力学
种子休眠
发芽
植物
休眠
生物
作者
Adam Jiankang Yang,Mary‐Louise Timmermans,Gregory A. Lawrence
出处
期刊:Physical review fluids
[American Physical Society]
日期:2024-01-02
卷期号:9 (1)
标识
DOI:10.1103/physrevfluids.9.014501
摘要
This study elucidates the regime of fluid instabilities that can arise in a stratified shear flow when density and velocity interfaces are not aligned - a common occurrence in various geophysical flows. Through a combination of linear stability analysis and direct numerical simulations, we unveil a hybrid mode characterized by features of both Kelvin-Helmholtz and Holmboe instabilities. By quantifying the crucial role of asymmetry, our findings contribute to a refined understanding of the dynamics and mixing in these stratified shear flows.
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