Slip velocity and field information of two-phase cavitating flows
文献类型：期刊论文
| 作者 | Ge, Mingming4; Apte, Dhruv4; Wang, Chuan2,3; Zhang, Guangjian5; Zhang, Xinlei1; Coutier-Delgosha, Olivier4 |
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 36期号:9页码:14 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0221643 |
| 通讯作者 | Wang, Chuan(wangchuan1'98710@126.com) |
| 英文摘要 | In this work, laser-induced florescent particle image velocimetry was performed to measure simultaneously the liquid and vapor velocity fields at the mid-span of a small-scale Venturi type section to determine the presence of a slip velocity between the phases. Various dynamic behavior and Kelvin-Helmholtz (K-H) instability involved in the cloud cavity shedding regime are discussed at four different cavitation numbers. The velocity, vorticity, and turbulence field information of the two phases are analyzed. The liquid-vapor mixture in a cavitating flow is usually considered a homogeneous medium in currently used computational models, but it is shown in this study that the two phases have very different dynamics. The measurements of the time-averaged velocities highlight the existence of a noteworthy slippage between the liquid and the vapor phases, especially in the upstream part of the cavitation region, where the slippage between the two phases can reach about 50% of the liquid velocity. Using phase-locked average, it is shown that the slip velocity in the upstream region is mainly located at the upper liquid-vapor interface, while the slip velocity in the closure area is near the bottom wall, due to the reentrant jet. These results contradict a primary assumption of the current models, where the medium is usually considered as a homogeneous mixture with a unique velocity field, thus providing a reference for future computational model improvement. |
| WOS关键词 | TO-DETONATION TRANSITION ; NUMERICAL-SIMULATION ; DYNAMICS ; SHEET ; MODEL |
| 资助项目 | U.S. Naval Research Laboratory10.13039/100009917[N00014-18-S-B001] ; ONR |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001304259600005 |
| 资助机构 | U.S. Naval Research Laboratory10.13039/100009917 ; ONR |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96505]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Wang, Chuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 2.GongQing Inst Sci & Technol, Int Shipping Res Inst, Jiujiang, Peoples R China 3.Yangzhou Univ, Coll Hydraul Sci & Engn, Yangzhou 225009, Peoples R China 4.Virginia Tech, Kevin T Crofton Dept Aerosp & Ocean Engn, Blacksburg, VA 24060 USA 5.Jiangsu Univ, Res Ctr Fluid Machinery Engn & Technol, Zhenjiang 212013, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, Mingming,Apte, Dhruv,Wang, Chuan,et al. Slip velocity and field information of two-phase cavitating flows[J]. PHYSICS OF FLUIDS,2024,36(9):14. |
| APA | Ge, Mingming,Apte, Dhruv,Wang, Chuan,Zhang, Guangjian,Zhang, Xinlei,&Coutier-Delgosha, Olivier.(2024).Slip velocity and field information of two-phase cavitating flows.PHYSICS OF FLUIDS,36(9),14. |
| MLA | Ge, Mingming,et al."Slip velocity and field information of two-phase cavitating flows".PHYSICS OF FLUIDS 36.9(2024):14. |
入库方式： OAI收割
来源：力学研究所
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