Investigation of internal wave wakes generated by a submerged body in a stratified flow

doi:10.1016/j.oceaneng.2022.112840

IMECH-IR > 非线性力学国家重点实验室

	Investigation of internal wave wakes generated by a submerged body in a stratified flow
	Chai J(柴锦)1,2; Wang ZY(王志英)1; Yang ZX(杨子轩)1,2; Wang Z(王展)1,2
通讯作者	Wang, Zhiying(wangzhiying@imech.ac.cn) ; Wang, Zhan(zwang@imech.ac.cn)
发表期刊	OCEAN ENGINEERING
	2022-12-15
卷号	266 页码:11
ISSN	0029-8018
摘要	Internal waves in the ocean with stratified structure are essential: natural internal waves for the untangling of physical and environmental processes in oceanography and internal waves generated by a submerged moving body for understanding the near-field flow structures and wave patterns for detection. The latter in a stratified flow with a pycnocline presented are investigated numerically in the present paper. Systematic analyses on the influences of different hydrodynamic parameters, including the Froude number (Fr), the Reynolds number (Re), the thickness of the pycnocline (AL), and the relative position of the submerged body (Ad), on internal wave wakes, are performed. A variation trend diagram of wake angle and wave amplitude for different parameters is obtained, showing the order of influence: Fr > AL > Ad > Re. For two key parameters, Fr and AL, scalings of wake angle variation are found. Wake angle shows a - 1 power-law dependence on Fr and the same order power law on AL in a critical range. In addition, vortex structures and turbulent kinetic energy distributions in the wakes are explored by comparing to the homogeneous case.
关键词	Stratified flow Internal wave wakes Large eddy simulation
DOI	10.1016/j.oceaneng.2022.112840
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000875566200002
关键词[WOS]	TURBULENT WAKE ; MOVING SOURCE ; TOWED SPHERE ; SHIP WAKES ; SIMULATION ; NUMBER
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
资助项目	National Natural Science Foundation of China[12132018] ; NSFC[11911530171]
项目资助者	National Natural Science Foundation of China ; NSFC
论文分区	一类
力学所作者排名	1
RpAuthor	Wang, Zhiying ; Wang, Zhan
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/90475
专题	非线性力学国家重点实验室流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Chai J,Wang ZY,Yang ZX,et al. Investigation of internal wave wakes generated by a submerged body in a stratified flow[J]. OCEAN ENGINEERING,2022,266:11.
APA	柴锦,王志英,杨子轩,&王展.(2022).Investigation of internal wave wakes generated by a submerged body in a stratified flow.OCEAN ENGINEERING,266,11.
MLA	柴锦,et al."Investigation of internal wave wakes generated by a submerged body in a stratified flow".OCEAN ENGINEERING 266(2022):11.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Jp2022FA005.pdf（5844KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载