LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil

doi:10.1063/5.0123381

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil
	Zhi,Yuchang 4; Huang RF(黄仁芳)3; Qiu RD(丘润荻)2,3; Wang YW(王一伟)1,2,3; Huang CG(黄晨光)1,2,3
刊名	PHYSICS OF FLUIDS
	2022-12-01
卷号	34 期号:12 页码:17
ISSN号	1070-6631
DOI	10.1063/5.0123381
通讯作者	Huang, Renfang(hrenfang@imech.ac.cn) ; Wang, Yiwei(wangyw@imech.ac.in)
英文摘要	Recent experiments have found that there is unstable vaporous cavitation around a surface-piercing hydrofoil at high Froude numbers and small yaw angles, and it would promote ventilation formation [R. Huang et al., "Investigations into the ventilated cavities around a surface-piercing hydrofoil at high Froude numbers, " Phys. Fluids 34, 043304 (2022)], but the cavity shedding dynamics and the mechanism of cavitation-vortex interaction are still open problems. In this paper, the unstable vaporous cavities around a surface-piercing hydrofoil are numerically investigated using the large-eddy simulation coupled with the Schnerr-Sauer cavitation model. Numerical simulations can predict the cavity features, including an aerated base cavity aft of the hydrofoil trailing edge, vaporous cavitation at the hydrofoil suction surface, and tip-vortex cavitation. A U-shaped vapor cloud shedding together with a horseshoe vortex is observed during the unsteady cavitation evolution, that is, the cavity development, cutoff, and collapse. This irregular shedding is related to the three-dimensional reentrant jet induced by the velocity reflection at the vaporous cavity closure line. Furthermore, the effects of the vaporous cavitation on the vorticity generation are attributed to vortex stretching, baroclinic torque, and vortex dilatation by using the vorticity transport equation. This study could contribute to the novel hydrofoil designs and their flow control. Published under an exclusive license by AIP Publishing.
分类号	一类/力学重要期刊
资助项目	National Natural Science Foundation of China ; [52006232] ; [12122214]
WOS关键词	LARGE-EDDY SIMULATION ; NUMERICAL-SIMULATION ; CLOUD CAVITATION ; UNSTEADY BEHAVIOR ; FLOW STRUCTURES ; TURBULENT-FLOW ; REENTRANT JET ; MECHANISM ; VORTICITY
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:000894726200013
资助机构	National Natural Science Foundation of China
其他责任者	Huang, Renfang ; Wang, Yiwei
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/91344]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China; 3.Inst Mech, Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 4.Sun Yat Sen Univ, Sch Aeronaut & Astronaut, Guangzhou 510275, Peoples R China;
推荐引用方式 GB/T 7714	Zhi,Yuchang,Huang RF,Qiu RD,et al. LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil[J]. PHYSICS OF FLUIDS,2022,34(12):17.
APA	Zhi,Yuchang,黄仁芳,丘润荻,王一伟,&黄晨光.(2022).LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil.PHYSICS OF FLUIDS,34(12),17.
MLA	Zhi,Yuchang,et al."LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil".PHYSICS OF FLUIDS 34.12(2022):17.