Experimental investigation of the wave-flow structure of an oblique internal solitary wave and its force exerted on a slender body
Experimental investigation of the wave-flow structure of an oblique internal solitary wave and its force exerted on a slender body
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斜内孤立波的波流结构及其对细长体的作用力实验研究
DOI：
10.1016/j.oceaneng.2020.107057
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发表时间：
2020-04
影响因子：
5
通讯作者：
Xin-Long Wang
中科院分区：
文献类型：
--
作者：
Shao-Dong Wang;Gang Wei;Hui Du;Jun-Lin Wu;Xin-Long Wang
本文报道了大型层状流体水槽中斜内孤立波的耦合波流结构及其对细长沉体的作用力的室内实验结果。采用多种实验技术测量了波流场和作用在细长体上的力。通过合理的分析，揭示了斜波传播方向和振幅对细长体在不同水深下动力特性的影响。实验结果表明，ISW包线附近的水平速度和ISW包前（后）垂直速度的下沉（上升流）流具有明显的剪切效应。包络线上方（下方）水平速度方向与ISW传播速度方向一致（相反），且前者量级较大。水平力取决于斜ISW诱导的速度场，垂直力由速度场和密度场耦合决定。水平波力和垂直波力的计算采用莫里森公式，分别对应速度分量，将垂直动压力转化为减小后的重力。
This paper reports the results of laboratory experiments on the coupling wave-flow structure of an oblique internal solitary wave (ISW) and the force it exerts on a submerged slender body in a large stratified fluid flume. Multiple experimental techniques were used to measure the wave-flow field as well as the force on the slender body. Reasonable analysis reveals the effects of the propagation directions and amplitudes of the oblique ISW on the dynamic characteristics of the slender body at different water depths. The experimental results show that there is a significant shear effect from the horizontal velocity near the envelope of the ISW and sinking (upwelling) current from the vertical velocity in front of (behind) the ISW packet. The direction of the horizontal velocity above (below) the envelope is consistent with (opposite to) the propagation velocity of the ISW, with the former having a larger magnitude. The horizontal force depends on the velocity field induced by the oblique ISW, and the vertical force is determined by the coupling velocity and density field. The horizontal and vertical wave forces are calculated using Morison's formula corresponding to the respective component of velocity, with the vertical dynamic pressure transformed into the reduced gravity.
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影响因子：
5
作者：
M. Cheng;C. Hsieh;J. R. Hsu;R. Hwang
通讯作者：
M. Cheng;C. Hsieh;J. R. Hsu;R. Hwang
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
DOI：
--
发表时间：
2004-07
期刊：
--
影响因子：
--
作者：
程友良;李家春;安连锁;刘玉峰
通讯作者：
程友良;李家春;安连锁;刘玉峰
影响因子：
4.3
作者：
S. Cai;Xiaomin Long;Sheng’an Wang
通讯作者：
S. Cai;Xiaomin Long;Sheng’an Wang
影响因子：
3.7
作者：
W. Choi;R. Camassa
通讯作者：
W. Choi;R. Camassa