Influencing factors and scaling law of bubble detachment at a submerged orifice
文献类型：会议论文
| 作者 | Wang YW(王一伟) ; Huang CG(黄晨光); Wu XC(吴小翠); Wang, YW (reprint author), Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing, Peoples R China.
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| 出版日期 | 2017 |
| 会议日期 | NOV 11-17, 2016 |
| 会议地点 | Phoenix, AZ |
| 关键词 | Constant-flow Conditions Layer Drag Reduction Simulation Liquid |
| 英文摘要 | Bubble formation and detachment are important in the drag reduction of underwater vehicle by using gas injection, which are involved in the integrated scaling law considering bubbles coalescence. The parameters of influencing factors are theoretically derived by dimensionless analysis on this issue. Then the effects are shown by analyzing results with various parameters. Results indicate that, the viscous force can be neglected near the default condition, and the bubble is difficult to detach if the viscosity is very large. Surface tension is the major constraint force in the default condition, which is also sensitive. The bubble easily crushes if the surface tension is small, while the neck of bubble can hardly break up if the surface tension is large. For the contact angle, the bubble profile significantly exceeds the orifice boundary if the wall surface is hydrophobic, which makes detachment period becomes larger. |
| 资助机构 | This research was sponsored by National Natural Science Foundation of China under Contract 11332011 and 11202215. This project was also supported by the Youth Innovation Promotion Association CAS (2015015). |
| 会议录 | PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2016, VOL. 7
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| 会议录出版者 | AMER SOC MECHANICAL ENGINEERS |
| 会议录出版地 | NEW YORK |
| 语种 | 英语 |
| ISBN号 | 978-0-7918-5061-9 |
| WOS记录号 | WOS:000400877800043 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/72180]  |
| 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 | Wang, YW (reprint author), Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing, Peoples R China. |
| 作者单位 | 1.[Wang, Yiwei 2.Huang, Chenguang 3.Wu, Xiaocui] Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang YW,Huang CG,Wu XC,et al. Influencing factors and scaling law of bubble detachment at a submerged orifice[C]. 见:. Phoenix, AZ. NOV 11-17, 2016. |
入库方式： OAI收割
来源：力学研究所
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