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

doi:10.1016/j.oceaneng.2022.112840

CORC > 力学研究所 > 中国科学院力学研究所 > 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
刊名	OCEAN ENGINEERING
	2022-12-15
卷号	266 页码:11
关键词	Stratified flow Internal wave wakes Large eddy simulation
ISSN号	0029-8018
DOI	10.1016/j.oceaneng.2022.112840
通讯作者	Wang, Zhiying(wangzhiying@imech.ac.cn) ; Wang, Zhan(zwang@imech.ac.cn)
英文摘要	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.
分类号	一类
资助项目	National Natural Science Foundation of China[12132018] ; NSFC[11911530171]
WOS关键词	TURBULENT WAKE ; MOVING SOURCE ; TOWED SPHERE ; SHIP WAKES ; SIMULATION ; NUMBER
WOS研究方向	Engineering ; Oceanography
语种	英语
WOS记录号	WOS:000875566200002
资助机构	National Natural Science Foundation of China ; NSFC
其他责任者	Wang, Zhiying ; Wang, Zhan
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90474]
专题	力学研究所_非线性力学国家重点实验室
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.