Experimental study on the mechanism of cavitation-induced ventilation

doi:10.1016/j.ijmultiphaseflow.2023.104633

IMECH-IR > 流固耦合系统力学重点实验室

	Experimental study on the mechanism of cavitation-induced ventilation
	Wang YJ(王永九); Huang RF(黄仁芳); Qiu RD(丘润荻); Wang YW(王一伟); Du TZ(杜特专)
通讯作者	Du, Tezhuan(dutezhuan@imech.ac.cn)
发表期刊	INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
	2024
卷号	170 页码:11
ISSN	0301-9322
摘要	In this study, the cavitating flow and cavitation-induced ventilation flow around a surface-piercing hydrofoil were investigated to gain in-depth understanding of the interaction mechanism between the vaporous cavity and free surface at low cavitation numbers. Experiments were conducted in a constrained-launching water tank to visualize the cavity using a high-speed camera. Unsteady cloud cavitation and cavitation-induced ventilation at atmospheric pressure were observed and analyzed while piercing the free surface. The flow regime map was summarized at a fixed aspect ratio of AR(h) = 1.5. Subsequently, a physical model was proposed to predict the maximum depression depth of the water surface (H) at the trailing edge of the hydrofoil. Both the physical model and experimental results reveal that the non-dimensional depth H/c has a linear relation to Fn2 c x Re-c x sin(2)alpha. Finally, a criterion for cavitation-induced ventilation based on the improved lifting-line theory and a physical model were proposed. A new relation H/L-c similar to alpha(0.5) was obtained, where L-c is the maximum cavity length. The results of this study can guide the design and application of hydrofoils for ventilation and cavitation processes.
关键词	Free surface Surface piercing Cavitation Ventilation Multiphase flow
DOI	10.1016/j.ijmultiphaseflow.2023.104633
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001101177200001
关键词[WOS]	LARGE-EDDY SIMULATION ; PARTIAL CAVITY FLOWS ; HYDROFOIL ; INCEPTION ; WAVES ; SHEET
WOS研究方向	Mechanics
WOS类目	Mechanics
资助项目	National Key R&D Program of China[2022YFB3303500] ; National Key R&D Program of China[2022YFB3303502] ; National Natural Science Foundation of China[11872065] ; National Natural Science Foundation of China[12122214] ; National Natural Science Foundation of China[52006232]
项目资助者	National Key R&D Program of China ; National Natural Science Foundation of China
论文分区	二类
力学所作者排名	1
RpAuthor	Du, Tezhuan
引用统计	被引频次：1[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/311007/93555
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Wang YJ,Huang RF,Qiu RD,et al. Experimental study on the mechanism of cavitation-induced ventilation[J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,2024,170:11.
APA	王永九,黄仁芳,丘润荻,王一伟,&杜特专.(2024).Experimental study on the mechanism of cavitation-induced ventilation.INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,170,11.
MLA	王永九,et al."Experimental study on the mechanism of cavitation-induced ventilation".INTERNATIONAL JOURNAL OF MULTIPHASE FLOW 170(2024):11.