Numerical investigations into the ventilation elimination mechanism of a surface-piercing hydrofoil
文献类型：期刊论文
| 作者 | Zhi, Yuchang3; Zhan, Jiemin3; Huang, Renfang2 ; Qiu, Rundi1,2; Wang, Yiwei1,2; Wang YW(王一伟)
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| 刊名 | OCEAN ENGINEERING
 |
| 出版日期 | 2022 |
| 卷号 | 243页码:12 |
| 关键词 | Surface-piercing hydrofoil Ventilation elimination Re-entrant jet RANS |
| ISSN号 | 0029-8018 |
| DOI | 10.1016/j.oceaneng.2021.110225 |
| 通讯作者 | Huang, Renfang() ; Wang, Yiwei(wangyw@imech.ac.cn) |
| 英文摘要 | This paper investigates the ventilation elimination mechanisms during the deceleration process of a surfacepiercing hydrofoil using the unsteady Reynolds-averaged Navier-Stokes (RANS) method together with a Volume of Fluid (VOF) model. The numerical results are in good agreement with the experimental data. The ventilation elimination mechanism of the surface-piercing hydrofoil is analyzed from the perspectives of the hydrofoil hydrodynamic performance, the ventilated cavity evolution, vortex structures, and re-entrant jets. The results indicate that the ventilation elimination includes three stages, i.e. a decrease in the ventilated cavity, washout, and reattachment. The decrease in the ventilated cavity is due to the hydrofoil speed decrease in the FV flow. Washout is the transition from fully ventilated to partially ventilated flow, and reattachment is the transition from partially ventilated to fully wetted flow. The underwater vortex structures around the surfacepiercing hydrofoil are composed of a tip vortex, an unstable vortex induced by the shear layer, and a Karman vortex caused by the vortex shedding from the trailing edge of the hydrofoil. Ventilation stability strongly depends on the re-entrant jet. When Phi (the angle between the flow direction and the closure line of the ventilated cavity) is greater than 45 degrees, the re-entrant jet impinges on the ventilated cavity's leading edge and destabilizes the ventilated cavity. |
| 资助项目 | National Natural Science Foundation of China[52006232] ; National Natural Science Foundation of China[11772340] ; Youth Innovation Promotion Association CAS[Y201906] |
| WOS研究方向 | Engineering ; Oceanography |
| 语种 | 英语 |
| WOS记录号 | WOS:000744765100001 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88393]  |
| 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 | Huang, Renfang; Wang, Yiwei |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China 3.Sun Yat Sen Univ, Sch Aeronaut & Astronaut, Dept Appl Mech & Engn, Guangzhou 510275, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhi, Yuchang,Zhan, Jiemin,Huang, Renfang,et al. Numerical investigations into the ventilation elimination mechanism of a surface-piercing hydrofoil[J]. OCEAN ENGINEERING,2022,243:12. |
| APA | Zhi, Yuchang,Zhan, Jiemin,Huang, Renfang,Qiu, Rundi,Wang, Yiwei,&王一伟.(2022).Numerical investigations into the ventilation elimination mechanism of a surface-piercing hydrofoil.OCEAN ENGINEERING,243,12. |
| MLA | Zhi, Yuchang,et al."Numerical investigations into the ventilation elimination mechanism of a surface-piercing hydrofoil".OCEAN ENGINEERING 243(2022):12. |
入库方式： OAI收割
来源：力学研究所
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