Three stages of bubble formation on submerged orifice under constant gas flow rate
文献类型：会议论文
| 作者 | Yu XX(于娴娴); Wang YW(王一伟) ; Huang CG(黄晨光); Du TZ(杜特专); Yiwei Wang; Yiwei Wang
|
| 出版日期 | 2015-12 |
| 会议名称 | 9TH INTERNATIONAL SYMPOSIUM ON CAVITATION (CAV 2015) |
| 会议日期 | Dec 6-10, 2015 |
| 通讯作者 | Yiwei Wang |
| 中文摘要 | Bubble formation is involved in many engineering applications. It is important to understand the dynamics of bubble formation. This work reports experimental and numerical results of bubble formation on submerged orifice under constant gas flow rate. Compressible large eddy simulation combined volume of fluid (VOF) was adopted in simulation and results was validated by experiment. Bubble formation is divided into three stages in this paper, expansion stage, elongation stage and pinch-off stage. In expansion stage, The bubble grows radially due to the incoming gas flux, but the bubble base remains attached to the orifice. But as gas injected, the spherical bubble will go into the elongation stage when the downward resultant force is lager than upward resultant force. And when bubble neck's length is bigger than √2Rothe bubble will go into pinch-off stage. Cylindrical Rayleigh-Plesset equation can be used to describe the pinch-off stage. Uncertain parameter r in it is given reference value in this paper. |
| 收录类别 | CPCI-S ; EI |
| 会议网址 | 10.1088/1742-6596/656/1/012042 |
| 会议录 | Journal of Physics: Conference Series 656 (2015) 012042
 |
| 会议录出版者 | IOP Publishing |
| 语种 | 英语 |
| WOS记录号 | WOS:000368580600042 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/58351]  |
| 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 | Yiwei Wang; Yiwei Wang |
| 推荐引用方式 GB/T 7714 | Yu XX,Wang YW,Huang CG,et al. Three stages of bubble formation on submerged orifice under constant gas flow rate[C]. 见:9TH INTERNATIONAL SYMPOSIUM ON CAVITATION (CAV 2015). Dec 6-10, 2015.10.1088/1742-6596/656/1/012042. |
入库方式： OAI收割
来源：力学研究所
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