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

doi:10.1063/5.0123381

IMECH-IR > 流固耦合系统力学重点实验室

	LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil
	Zhi,Yuchang 1; Huang RF(黄仁芳)2; Qiu RD(丘润荻)2,3; Wang YW(王一伟)2,3,4 ; Huang CG(黄晨光)2,3,4
通讯作者	Huang, Renfang(hrenfang@imech.ac.cn) ; Wang, Yiwei(wangyw@imech.ac.in)
发表期刊	PHYSICS OF FLUIDS
	2022-12-01
卷号	34 期号:12 页码:17
ISSN	1070-6631
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.
DOI	10.1063/5.0123381
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000894726200013
关键词[WOS]	LARGE-EDDY SIMULATION ; NUMERICAL-SIMULATION ; CLOUD CAVITATION ; UNSTEADY BEHAVIOR ; FLOW STRUCTURES ; TURBULENT-FLOW ; REENTRANT JET ; MECHANISM ; VORTICITY
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
资助项目	National Natural Science Foundation of China ; [52006232] ; [12122214]
项目资助者	National Natural Science Foundation of China
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Huang, Renfang ; Wang, Yiwei
引用统计	被引频次：14[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/311007/91345
专题	流固耦合系统力学重点实验室
作者单位	1.Sun Yat Sen Univ, Sch Aeronaut & Astronaut, Guangzhou 510275, Peoples R China; 2.Inst Mech, Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, 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.

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