IMECH-IR  > 国家微重力实验室
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.
Source PublicationMICROGRAVITY SCIENCE AND TECHNOLOGY
2016
Volume28Issue:2Pages:133-142
ISSN0938-0108
AbstractA 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.
KeywordPartial Nucleate Pool Boiling Boiling Incipience Sober-sj10 Ground Test
DOI10.1007/s12217-016-9490-0
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000376652000008
WOS KeywordPartial nucleate pool boiling ; Boiling incipience ; SOBER-SJ10 ; Ground test
WOS Research AreaEngineering ; Thermodynamics ; Mechanics
WOS SubjectEngineering, Aerospace ; Thermodynamics ; Mechanics
Funding OrganizationThe 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.
DepartmentNML微重力两相流与燃烧
Classification二类
RankingFalse
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59562
Collection国家微重力实验室
Corresponding AuthorLi, HX (reprint author), Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Peoples R China.
Recommended Citation
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.
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.
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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