| LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil | |
Zhi,Yuchang1; Huang RF(黄仁芳)2; Qiu RD(丘润荻)2,3; Wang YW(王一伟)2,3,4 ; Huang CG(黄晨光)2,3,4
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| Corresponding Author | Huang, Renfang([email protected]) ; Wang, Yiwei([email protected]) |
| Source Publication | PHYSICS OF FLUIDS
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| 2022-12-01 | |
| Volume | 34Issue:12Pages:17 |
| ISSN | 1070-6631 |
| Abstract | Recent experiments have found that there is unstable vaporous cavitation around a surface-piercing hydrofoil at high Froude numbers and small yaw angles, and it would promote ventilation formation [R. Huang et al., "Investigations into the ventilated cavities around a surface-piercing hydrofoil at high Froude numbers, " Phys. Fluids 34, 043304 (2022)], but the cavity shedding dynamics and the mechanism of cavitation-vortex interaction are still open problems. In this paper, the unstable vaporous cavities around a surface-piercing hydrofoil are numerically investigated using the large-eddy simulation coupled with the Schnerr-Sauer cavitation model. Numerical simulations can predict the cavity features, including an aerated base cavity aft of the hydrofoil trailing edge, vaporous cavitation at the hydrofoil suction surface, and tip-vortex cavitation. A U-shaped vapor cloud shedding together with a horseshoe vortex is observed during the unsteady cavitation evolution, that is, the cavity development, cutoff, and collapse. This irregular shedding is related to the three-dimensional reentrant jet induced by the velocity reflection at the vaporous cavity closure line. Furthermore, the effects of the vaporous cavitation on the vorticity generation are attributed to vortex stretching, baroclinic torque, and vortex dilatation by using the vorticity transport equation. This study could contribute to the novel hydrofoil designs and their flow control. Published under an exclusive license by AIP Publishing. |
| DOI | 10.1063/5.0123381 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000894726200013 |
| WOS Keyword | LARGE-EDDY SIMULATION ; NUMERICAL-SIMULATION ; CLOUD CAVITATION ; UNSTEADY BEHAVIOR ; FLOW STRUCTURES ; TURBULENT-FLOW ; REENTRANT JET ; MECHANISM ; VORTICITY |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | National Natural Science Foundation of China ; [52006232] ; [12122214] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Huang, Renfang ; Wang, Yiwei |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/91345 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Sun Yat Sen Univ, Sch Aeronaut & Astronaut, Guangzhou 510275, Peoples R China; 2.Inst Mech, Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Future Technol, Beijing 100049, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Zhi,Yuchang,Huang RF,Qiu RD,et al. LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil[J]. PHYSICS OF FLUIDS,2022,34,12,:17.Rp_Au:Huang, Renfang, Wang, Yiwei |
| APA | Zhi,Yuchang,黄仁芳,丘润荻,王一伟,&黄晨光.(2022).LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil.PHYSICS OF FLUIDS,34(12),17. |
| MLA | Zhi,Yuchang,et al."LES investigation into the cavity shedding dynamics and cavitation-vortex interaction around a surface-piercing hydrofoil".PHYSICS OF FLUIDS 34.12(2022):17. |
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| Jp2022FA045_2022_LES（5532KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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