Numerical Investigation on the Ventilated Supercavity around a Body under Free Surface Effect

doi:10.3390/jmse11050912

IMECH-IR > 流固耦合系统力学重点实验室

	Numerical Investigation on the Ventilated Supercavity around a Body under Free Surface Effect
	Zhi, Yuchang ; Zhan, Jiemin ; Huang RF(黄仁芳); Wang YW(王一伟); Li, Ning
发表期刊	JOURNAL OF MARINE SCIENCE AND ENGINEERING
	2023-04
卷号	11 期号:5 页码:912
摘要	Reducing vessel resistance by using ventilated cavities has been a highly researched topic in the marine industry. There is limited literature on ventilated supercavities near the free surface, which indicates that their dynamic behavior is more complex than conventional ventilated cavities due to the effect of the free surface. This paper employs numerical simulations to study the dynamic behavior of the ventilated supercavity, taking into account the effect of the free surface. Numerical simulations can predict gas leakage behaviors, cavity geometry, and internal flow structures. The influence of the free surface shortens the length of the ventilated cavity and increases the diameter. The presence of the free surface mainly changes the vertical velocity distribution between the free surface and the cavity. The results show that there are two typical gas leakage mechanisms under different immersion depths: twin-vortex tube leakage mode and re-entrant jet leakage mode. The internal flow field of ventilated supercavity is classified into three regions: the internal boundary layer, the ventilation influence region, and the reverse flow region. As the distance between the free surface and the ventilated supercavity decreases, the ventilated supercavity is affected by both the free surface effect and the gravity effect.
关键词	ventilated supercavity free surface dynamic behavior gas leakage
DOI	10.3390/jmse11050912
收录类别	SCI
语种	英语
WOS记录号	WOS:000997497000001
项目资助者	Shenzhen Science and Technology Program [JCYJ20220818102012024] ; National Natural Science Foundation of China [52006232]
论文分区	二类/Q1
力学所作者排名	1
RpAuthor	Huang, RF
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/311007/92197
专题	流固耦合系统力学重点实验室
作者单位	1.(Zhi Yuchang, Zhan Jiemin) Sun Yat Sen Univ Dept Appl Mech & Engn Shenzhen Campus66 Gongchang Rd Shenzhen 518107 Peoples R China 2.(Huang Renfang, Wang Yiwei) Chinese Acad Sci Inst Mech Key Lab Mech Fluid Solid Coupling Syst Beijing 100190 Peoples R China 3.(Wang Yiwei) Univ Chinese Acad Sci Sch Future Technol Beijing 100049 Peoples R China 4.(Wang Yiwei) Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 5.(Li Ning) Marine Design & Res Inst China Shanghai 200011 Peoples R China 6.(Li Ning) Sci & Technol Waterjet Prop Lab Shanghai 200011 Peoples R China
推荐引用方式 GB/T 7714	Zhi, Yuchang,Zhan, Jiemin,Huang RF,et al. Numerical Investigation on the Ventilated Supercavity around a Body under Free Surface Effect[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2023,11,5,:912.
APA	Zhi, Yuchang,Zhan, Jiemin,黄仁芳,王一伟,&Li, Ning.(2023).Numerical Investigation on the Ventilated Supercavity around a Body under Free Surface Effect.JOURNAL OF MARINE SCIENCE AND ENGINEERING,11(5),912.
MLA	Zhi, Yuchang,et al."Numerical Investigation on the Ventilated Supercavity around a Body under Free Surface Effect".JOURNAL OF MARINE SCIENCE AND ENGINEERING 11.5(2023):912.

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