| Three-Dimensional Numerical Simulation of Bubble Dynamics in Microgravity under the Influence of Nonuniform Electric Fields |
| Wang T; Li HX ; Zhao JF(赵建福); Li, HX (reprint author), Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China.
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| 发表期刊 | MICROGRAVITY SCIENCE AND TECHNOLOGY
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| 2016
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| 卷号 | 28期号:2页码:133-142 |
| ISSN | 0938-0108
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| 摘要 | A three-dimensional VOSET method is used along with the adaptive mesh refinement (AMR) method to simulate the behaviors of a bubble departing from the outside wall of a horizontal square-cross-section tube in microgravity under the influence of nonuniform electric fields. The effects of gravity, electric field intensity, fluid permittivity, and bubble initial position on the bubble detachment and rising are investigated and analyzed. Computational results show that the gravity and electric fields have significant influences on the bubble detachment and rising velocity and rising trajectory. Decrease in gravity results in the decrease in the buoyancy exerted on the bubble, considerably mitigating the rising capability of the bubble and delaying the bubble detachment. Imposing a nonuniform electric field, which exhibits physically the strongest intensity in regions near the tube wall, can supply an additional driving force as a replacement of the buoyancy to accelerate the bubble detachment and rising. It is also shown that a larger electric field intensity or larger ratio of liquid permittivity to gas permittivity leads to a larger deformation, easier detachment, and larger rising velocity, of the bubble. The nonuniformity of the electric fields can also affect the bubble motion trajectory and result in the asymmetric deformation of the bubble. |
| 关键词 | Partial Nucleate Pool Boiling
Boiling Incipience
Sober-sj10
Ground Test
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| DOI | 10.1007/s12217-016-9490-0
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| URL | 查看原文
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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:000376652000008
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| 关键词[WOS] | Partial nucleate pool boiling
; Boiling incipience
; SOBER-SJ10
; Ground test
|
| WOS研究方向 | Engineering
; Thermodynamics
; Mechanics
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| WOS类目 | Engineering, Aerospace
; Thermodynamics
; Mechanics
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| 项目资助者 | The present study is supported financially by the National Natural Science Foundation of China (No.51176153 and 11372327) and the Strategic Priority Research Program on Space Science, the Chinese Academy of Sciences under the grant of XDA04020404.
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| 课题组名称 | NML微重力两相流与燃烧
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| 论文分区 | 二类
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| 力学所作者排名 | False
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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/311007/59562
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| 专题 | 微重力重点实验室
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| 通讯作者 | Li, HX (reprint author), Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China. |
推荐引用方式
GB/T 7714 |
Wang T,Li HX,Zhao JF,et al. Three-Dimensional Numerical Simulation of Bubble Dynamics in Microgravity under the Influence of Nonuniform Electric Fields[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2016,28,2,:133-142.
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| APA |
Wang T,Li HX,赵建福,&Li, HX .(2016).Three-Dimensional Numerical Simulation of Bubble Dynamics in Microgravity under the Influence of Nonuniform Electric Fields.MICROGRAVITY SCIENCE AND TECHNOLOGY,28(2),133-142.
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| MLA |
Wang T,et al."Three-Dimensional Numerical Simulation of Bubble Dynamics in Microgravity under the Influence of Nonuniform Electric Fields".MICROGRAVITY SCIENCE AND TECHNOLOGY 28.2(2016):133-142.
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