Research on ventilation and supercavitation mechanism of high-speed surface-piercing hydrofoil

doi:10.1063/5.0081380

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-)

	Research on ventilation and supercavitation mechanism of high-speed surface-piercing hydrofoil
	Wang YJ(王永九)3,4; Huang CG(黄晨光)2,3,4; Du TZ(杜特专)3,4; Huang RF(黄仁芳)4; Zhi YC 1; Wang YW(王一伟)3,4; Xiao ZJ 4; Bian ZD(卞真东)3,4
刊名	PHYSICS OF FLUIDS
	2022-02-01
卷号	34 期号:2 页码:17
ISSN号	1070-6631
DOI	10.1063/5.0081380
通讯作者	Du, Tezhuan(dutezhuan@imech.ac.cn)
英文摘要	Flow structures and hydrodynamic performance of high-speed surface-piercing hydrofoils were studied by numerical simulation, with an emphasis on the interaction mechanism between supercavitation and natural ventilation. Compared with the available experimental data, the numerical method could predict the cavitation and ventilation well. The numerical simulation results show that the flow over hydrofoil with blunt trailing edge is more conducive to separating. The semi-ogive hydrofoil was used to explore the influence of angles of attack on ventilation and cavitation. The ventilation rate increases with the increase in the angles of attack. At small attack angles (alpha = 0 & DEG; and 2 & DEG;), the regional ventilated flow is found in supercavitation. The vortex street structures and twin vortices closure mode are formed in the closure region of the supercavity. At moderate attack angles (alpha = 6 & DEG; and 10 & DEG;), the thickness of the undisturbed liquid sheet (delta) becomes thinner and the natural supercavitation transits to fully ventilated supercavitation through the cavitation-induced ventilation, but the ventilation position is different because of Taylor instability. The hydrodynamic coefficients remain relatively stable in natural supercavitation and the lift coefficient reduce to half of the original value when the supercavitation is fully ventilated, which are caused by the pressure changes on the suction and pressure surfaces.& nbsp;& nbsp;(c)& nbsp;2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
分类号	一类/力学重要期刊
资助项目	National Natural Science Foundation of China[11872065]
WOS关键词	CAVITATION SHEDDING DYNAMICS ; LARGE-EDDY SIMULATION ; NUMERICAL-SIMULATION ; PRESSURE FLUCTUATION ; FLOW ; ELIMINATION ; VALIDATION ; PROPELLER ; ENTRY
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:000760749800002
资助机构	National Natural Science Foundation of China
其他责任者	Du, Tezhuan
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/88718]
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.Sun Yat Sen Univ, Sch Aeronaut & Astronaut, Dept Appl Mech & Engn, Guangzhou 510275, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Wang YJ,Huang CG,Du TZ,et al. Research on ventilation and supercavitation mechanism of high-speed surface-piercing hydrofoil[J]. PHYSICS OF FLUIDS,2022,34(2):17.
APA	王永九.,黄晨光.,杜特专.,黄仁芳.,Zhi YC.,...&卞真东.(2022).Research on ventilation and supercavitation mechanism of high-speed surface-piercing hydrofoil.PHYSICS OF FLUIDS,34(2),17.
MLA	王永九,et al."Research on ventilation and supercavitation mechanism of high-speed surface-piercing hydrofoil".PHYSICS OF FLUIDS 34.2(2022):17.