Secondary generation of breaking internal waves in confined basins by gravity currents
Secondary generation of breaking internal waves in confined basins by gravity currents
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重力流在承压盆地中二次产生破碎内波
DOI：
10.1017/jfm.2021.309
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发表时间：
2021
影响因子：
3.7
通讯作者：
Koseff, Jeffrey R.
中科院分区：
文献类型：
--
作者：
Tanimoto, Yukinobu;Ouellette, Nicholas T.;Koseff, Jeffrey R.
在封闭的成层盆地中，风强迫是内波和假潮发生和产生的重要机制。以前的观测也发现，分层环境中的重力流也可以引发内波。我们进行了一系列的实验室实验，以调查产生的内部运动，由于这样的密集重力流的倾斜进入两层分层，特别关注的发病之间的相互作用的内部运动和地形和diapycnal混合由于打破内波。大气层结对重力流的斜压响应类似于一个受地面风应力强迫的系统，其响应的特征是Wedderburn数与初始重力流Richardson数成线性正比。所产生的内部运动的特征在于具有低频内部浪涌和高频渐进内部波。计算了破碎内波的总体混合效率，发现与以前的类似研究相比，混合效率较低。
In confined stratified basins, wind forcing is an important mechanism responsible for the onset and generation of internal waves and seiches. Previous observations have also found that gravity currents in stratified environments can also initiate internal waves. We conducted a series of laboratory experiments to investigate the generation of internal motions due to such dense gravity currents on an incline entering a two-layer stratification, focusing in particular on the interaction between the onset of internal motions and topography and diapycnal mixing due to breaking internal waves. The baroclinic response of the ambient stratification to the gravity current is found to be analogous to a system forced by a surface wind stress, and the response as characterized by a Wedderburn-like number was found to be linearly proportional to the initial gravity current Richardson number. The generated internal motions are characterized as having a low-frequency internal surge and higher-frequency progressive internal waves. The overall mixing efficiency of the breaking internal wave was calculated and found to be low compared with similar previous studies.
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影响因子：
3.7
作者：
Y. Tanimoto;N. Ouellette;J. Koseff
通讯作者：
Y. Tanimoto;N. Ouellette;J. Koseff
影响因子：
3.7
作者：
Ryan J. Lowe;P. Linden;J. Rottman
通讯作者：
J. Rottman
两层环境流体中的二维浮力射流
影响因子：
2.4
作者：
R. Wallace;B. B. Sheff
通讯作者：
B. B. Sheff
海啸内波输送水下山体滑坡释放的沉积物
影响因子：
4.6
作者：
N. Brizuela;A. Filonov;M. Alford
通讯作者：
M. Alford
影响因子：
3.7
作者：
MONISMITH, S
通讯作者：
MONISMITH, S