Experimental study on the mechanism of cavitation-induced ventilation

doi:10.1016/j.ijmultiphaseflow.2023.104633

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-)

	Experimental study on the mechanism of cavitation-induced ventilation
	Wang, Yongjiu 2,3; Huang, Renfang 3; Qiu, Rundi 1,3; Wang, Yiwei 1,2,3; Du, Tezhuan 2,3
刊名	INTERNATIONAL JOURNAL OF MULTIPHASE FLOW
	2024
卷号	170 页码:11
关键词	Free surface Surface piercing Cavitation Ventilation Multiphase flow
ISSN号	0301-9322
DOI	10.1016/j.ijmultiphaseflow.2023.104633
通讯作者	Du, Tezhuan(dutezhuan@imech.ac.cn)
英文摘要	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.
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]
WOS关键词	LARGE-EDDY SIMULATION ; PARTIAL CAVITY FLOWS ; HYDROFOIL ; INCEPTION ; WAVES ; SHEET
WOS研究方向	Mechanics
语种	英语
WOS记录号	WOS:001101177200001
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93554]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Du, Tezhuan
作者单位	1.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.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, Yongjiu,Huang, Renfang,Qiu, Rundi,et al. Experimental study on the mechanism of cavitation-induced ventilation[J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,2024,170:11.
APA	Wang, Yongjiu,Huang, Renfang,Qiu, Rundi,Wang, Yiwei,&Du, Tezhuan.(2024).Experimental study on the mechanism of cavitation-induced ventilation.INTERNATIONAL JOURNAL OF MULTIPHASE FLOW,170,11.
MLA	Wang, Yongjiu,et al."Experimental study on the mechanism of cavitation-induced ventilation".INTERNATIONAL JOURNAL OF MULTIPHASE FLOW 170(2024):11.