Experimental Investigation on the Vertical Structure Characteristics of Internal Solitary Waves
Experimental Investigation on the Vertical Structure Characteristics of Internal Solitary Waves
复制标题
内孤立波垂直结构特性的实验研究
DOI：
10.3390/jmse10081045
复制
发表时间：
2022-07
影响因子：
2.9
通讯作者：
Jieshuo Xie
中科院分区：
文献类型：
--
作者：
Pai Peng;Hui Du;Gang Wei;Shaodong Wang;Pu Xuan;Shuqun Cai;Jieshuo Xie
系统地研究了内孤立波在大型重力分层流体水槽中的垂直结构特征。建立了四种不同的分层，并用电导探针阵列测量了ISW的基本元素。给出了不同层数下两种ISW的振幅、特征频率和波形的垂直分布，并与理论模型进行了比较。研究表明，不同层位的地震波振幅垂直结构与理论模型基本一致，而振幅较大的地震波则存在一定的偏差。两层模型和连续分层模型都不能有效地描述不同深度特征频率随幅度的变化。对于单个小幅度地震波，其特征频率随深度的增加先增大后减小。特征频率在浮力频率最大的深度处最大。对于振幅较大的ISW，在浮力频率最大的深度附近有可能出现特征频率的局部极小值。在不同的地层中，KdV理论的Sech2函数可以很好地描述不同深度的ISW波形。
An experimental investigation of the vertical structure characteristics of internal solitary waves (ISWs) was systematically carried out in a large gravitationally stratified fluid flume. Four different stratifications were established, and basic elements of ISWs were measured by a conductivity probe array. The vertical distributions of the amplitude, characteristic frequency and waveform of two types of ISWs under different stratifications were obtained, and the experimental results were compared with the theoretical model. The study shows that most vertical structures of the amplitude under different stratifications agree with those of the theoretical model, while there are some deviations for ISWs with large amplitudes. Neither the two-layer model nor the continuously stratified model can effectively describe the variation in the characteristic frequency at different depths with amplitude. For a single small-amplitude ISW, the characteristic frequency first increases and then decreases with increasing depth. The characteristic frequency is largest at the depth of the maximum buoyancy frequency. For an ISW with a relatively large amplitude, there is likely to be a local minimum of the characteristic frequency near the depth where the maximum buoyancy frequency lies. In different stratifications, the sech2 function of KdV theory can describe the waveforms of ISWs at different depths well.
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影响因子：
4.6
作者：
L. Walker
通讯作者：
L. Walker
影响因子：
2.2
作者：
Chad Coulliette;Stephen Wiggins
通讯作者：
Chad Coulliette;Stephen Wiggins
南海文昌海域内波振幅反演研究
影响因子：
1.4
作者：
Zhang Xudong;Wang Jing;Sun Lina;Meng Junmin
通讯作者：
Meng Junmin
利用地震海洋学资料分析南海北部内孤立波振幅
DOI：
10.1016/j.dsr.2019.02.005
发表时间：
2019-04
期刊：
Deep Sea Research Part I: Oceanographic Research Papers
影响因子：
--
作者：
Geng Minghui;Song Haibin;Guan Yongxian;Bai Yang
通讯作者：
Bai Yang
影响因子：
4.6
作者：
H. Du;G. Wei;Shao-dong Wang;Xin-long Wang
通讯作者：
H. Du;G. Wei;Shao-dong Wang;Xin-long Wang