Research on ventilation and supercavitation mechanism of high-speed surface-piercing hydrofoil
文献类型：期刊论文
| 作者 | Wang, Yongjiu3,4; Huang, Chenguang2,3,4 ; Du, Tezhuan3,4; Huang, Renfang4; Zhi, Yuchang1; Wang, Yiwei3,4; Xiao, Zhijian4; Bian, Zhendong3,4; Huang CG(黄晨光); Wang YW(王一伟)
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| 刊名 | PHYSICS OF FLUIDS
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| 出版日期 | 2022-02-01 |
| 卷号 | 34期号:2页码:17 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0081380 |
| 通讯作者 | Du, Tezhuan(dutezhuan@imech.ac.cn) |
| 英文摘要 | Flow structures and hydrodynamic performance of high-speed surface-piercing hydrofoils were studied by numerical simulation, with an emphasis on the interaction mechanism between supercavitation and natural ventilation. Compared with the available experimental data, the numerical method could predict the cavitation and ventilation well. The numerical simulation results show that the flow over hydrofoil with blunt trailing edge is more conducive to separating. The semi-ogive hydrofoil was used to explore the influence of angles of attack on ventilation and cavitation. The ventilation rate increases with the increase in the angles of attack. At small attack angles (alpha = 0 & DEG; and 2 & DEG;), the regional ventilated flow is found in supercavitation. The vortex street structures and twin vortices closure mode are formed in the closure region of the supercavity. At moderate attack angles (alpha = 6 & DEG; and 10 & DEG;), the thickness of the undisturbed liquid sheet (delta) becomes thinner and the natural supercavitation transits to fully ventilated supercavitation through the cavitation-induced ventilation, but the ventilation position is different because of Taylor instability. The hydrodynamic coefficients remain relatively stable in natural supercavitation and the lift coefficient reduce to half of the original value when the supercavitation is fully ventilated, which are caused by the pressure changes on the suction and pressure surfaces.& nbsp;& nbsp;(c)& nbsp;2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
| WOS关键词 | CAVITATION SHEDDING DYNAMICS ; LARGE-EDDY SIMULATION ; NUMERICAL-SIMULATION ; PRESSURE FLUCTUATION ; FLOW ; ELIMINATION ; VALIDATION ; PROPELLER ; ENTRY |
| 资助项目 | National Natural Science Foundation of China[11872065] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000760749800002 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88718]  |
| 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.Sun Yat Sen Univ, Sch Aeronaut & Astronaut, Dept Appl Mech & Engn, Guangzhou 510275, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 4.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, Chenguang,Du, Tezhuan,et al. Research on ventilation and supercavitation mechanism of high-speed surface-piercing hydrofoil[J]. PHYSICS OF FLUIDS,2022,34(2):17. |
| APA | Wang, Yongjiu.,Huang, Chenguang.,Du, Tezhuan.,Huang, Renfang.,Zhi, Yuchang.,...&杜特专.(2022).Research on ventilation and supercavitation mechanism of high-speed surface-piercing hydrofoil.PHYSICS OF FLUIDS,34(2),17. |
| MLA | Wang, Yongjiu,et al."Research on ventilation and supercavitation mechanism of high-speed surface-piercing hydrofoil".PHYSICS OF FLUIDS 34.2(2022):17. |
入库方式： OAI收割
来源：力学研究所
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