| Numerical Simulation of Quasi-Static Bubble Formation from a Submerged Orifice by the Axisymmetric VOSET Method |
| Wang T ; Li HX; Zhao JF(赵建福); Guo KK
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| 通讯作者 | Wang, Tai(wangtai_1986@163.com)
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| 发表期刊 | MICROGRAVITY SCIENCE AND TECHNOLOGY
 |
| 2019-06-01
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| 卷号 | 31期号:3页码:279-292 |
| ISSN | 0938-0108
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| 摘要 | In order to investigate the dynamics of quasi-static bubble formation from a submerged orifice, this paper developed an axisymmetric VOSET method with continuum surface force (CSF) model which can accurately capture the moving phase interface of gas-liquid flow. Test case shows that numerical results are in good agreement with experimental results from the literature. The effects of gas flow rate, orifice size, surface tension, contact angle, liquid density, and gravitational acceleration on bubble shape, departure time and departure volume are investigated and analyzed. It is found that increase in orifice size, surface tension, and contact angle results in the increase in the capillary force resisting bubble detachment, which leads to larger departure time and departure volume. But there is a critical contact angle, and contact angle has no significance effect on the process of bubble formation and detachment, when it is smaller than the critical value. Buoyancy force promoting bubble detachment increases with the increase of liquid density and gravitational acceleration, which results in smaller departure time and departure volume. Also, the forming process of the neck shape of bubble bottom at the bubble detachment stage is observed, and the results show that the position of the smallest part of the neck approximately equals to the orifice radius R-c. |
| 关键词 | Axisymmetric VOSET method
Bubble formation
Bubble detachment
Static contact angle
Numerical simulation
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| DOI | 10.1007/s12217-019-9690-5
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000471619500005
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| 关键词[WOS] | GROWTH
; DYNAMICS
; FLUID
; DETACHMENT
; VOLUME
; FLOW
; LEVEL
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| WOS研究方向 | Engineering
; Thermodynamics
; Mechanics
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| WOS类目 | Engineering, Aerospace
; Thermodynamics
; Mechanics
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| 资助项目 | Fundamental Research Funds for the Central Universities[2018MS105]
; Chinese Academy of Sciences (CAS)
; National Natural Science Foundation of China (NSFC)[U1738105]
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| 项目资助者 | Fundamental Research Funds for the Central Universities
; Chinese Academy of Sciences (CAS)
; National Natural Science Foundation of China (NSFC)
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| 论文分区 | 二类
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| 力学所作者排名 | 3
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| RpAuthor | Wang, Tai
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/79358
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| 专题 | 微重力重点实验室
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推荐引用方式
GB/T 7714 |
Wang T,Li HX,Zhao JF,et al. Numerical Simulation of Quasi-Static Bubble Formation from a Submerged Orifice by the Axisymmetric VOSET Method[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2019,31,3,:279-292.
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| APA |
Wang T,Li HX,赵建福,&Guo KK.(2019).Numerical Simulation of Quasi-Static Bubble Formation from a Submerged Orifice by the Axisymmetric VOSET Method.MICROGRAVITY SCIENCE AND TECHNOLOGY,31(3),279-292.
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| MLA |
Wang T,et al."Numerical Simulation of Quasi-Static Bubble Formation from a Submerged Orifice by the Axisymmetric VOSET Method".MICROGRAVITY SCIENCE AND TECHNOLOGY 31.3(2019):279-292.
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