Numerical Investigation on the Ventilated Supercavity around a Body under Free Surface Effect
文献类型：期刊论文
| 作者 | Zhi, Yuchang; Zhan, Jiemin; Huang RF(黄仁芳); Wang YW(王一伟) ; Li, Ning
|
| 刊名 | JOURNAL OF MARINE SCIENCE AND ENGINEERING
 |
| 出版日期 | 2023-04 |
| 卷号 | 11期号:5页码:912 |
| 关键词 | ventilated supercavity free surface dynamic behavior gas leakage |
| DOI | 10.3390/jmse11050912 |
| 英文摘要 | 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. |
| 分类号 | 二类/Q1 |
| WOS研究方向 | WOS:000997497000001 |
| 语种 | 英语 |
| 资助机构 | Shenzhen Science and Technology Program [JCYJ20220818102012024] ; National Natural Science Foundation of China [52006232] |
| 其他责任者 | Huang, RF |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/92197]  |
| 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.(Wang Yiwei) Univ Chinese Acad Sci Sch Future Technol Beijing 100049 Peoples R China 2.(Zhi Yuchang, Zhan Jiemin) Sun Yat Sen Univ Dept Appl Mech & Engn Shenzhen Campus66 Gongchang Rd Shenzhen 518107 Peoples R China 3.(Huang Renfang, Wang Yiwei) Chinese Acad Sci Inst Mech Key Lab Mech Fluid Solid Coupling Syst Beijing 100190 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. |
入库方式： OAI收割
来源：力学研究所
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