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Experimental Research on Thermocapillary-Buoyancy Migration Interaction of Axisymmetric Two Drops by Using Digital Holographic Interferometry
Zhang ST(张朔婷); Duan L(段俐); Kang Q(康琦)
Source PublicationMICROGRAVITY SCIENCE AND TECHNOLOGY
2018-05-01
Volume30Issue:3Pages:183-193
ISSN0938-0108
AbstractThe migration and interaction of axisymmetric two drops in a vertical temperature gradient is investigated experimentally on the ground. A silicon oil is used as the continuous phase, and a water-ethanol mixture is used as the drop phase, respectively. The migration and interaction of two drops, under the combined effects of buoyancy and thermocapillary, is recorded by a digital holographic interferometry measurement in the experiment to analyse the velocities and temperature distribution of the drops. As a result, when two drops migrate together, the drop affects the other drop by perturbing the temperature field around itself. For the leading drop, the velocity is faster than the one of the isolated drop, and the maximum of the interfacial temperature distribution is larger than the one of the isolated drop. For the trailing drop, the velocity is slower than the one of the isolated drop, and the maximum of the interfacial temperature distribution is less than the one of the isolated drop. The influence of the dimensionless initial distance between the drop centres to the drop migration is discussed in detail in this study.
KeywordInterfacial tension Thermocapillary migration Drop Interaction
DOI10.1007/s12217-017-9578-1
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000431998800005
WOS KeywordVERTICAL TEMPERATURE-GRADIENT ; THERMAL WAKE INTERACTION ; MARANGONI NUMBER ; REYNOLDS-NUMBER ; REDUCED GRAVITY ; MOTION ; BUBBLES ; DROPLETS ; MODERATE
WOS Research AreaEngineering, Aerospace ; Thermodynamics ; Mechanics
WOS SubjectEngineering ; Thermodynamics ; Mechanics
Funding OrganizationNational Natural Science Foundation of China [11372328] ; Strategic Priority Research Programme on Space Science ; Chinese Academy of Sciences: SJ-10 Recoverable Scientific Experiment Satellite [XDA04020405, XDA04020202-05] ; China Manned Space Engineering program
Classification二类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77925
Collection国家微重力实验室
Affiliation1.Univ Chinese Acad Sci, Chinese Acad Sci, Inst Mech, Natl Micrograv Lab,Sch Engn Sci, Beijing 100190, Peoples R China
2.China Nucl Power Engn Co Ltd, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhang ST,Duan L,Kang Q. Experimental Research on Thermocapillary-Buoyancy Migration Interaction of Axisymmetric Two Drops by Using Digital Holographic Interferometry[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2018,30(3):183-193.
APA 张朔婷,段俐,&康琦.(2018).Experimental Research on Thermocapillary-Buoyancy Migration Interaction of Axisymmetric Two Drops by Using Digital Holographic Interferometry.MICROGRAVITY SCIENCE AND TECHNOLOGY,30(3),183-193.
MLA 张朔婷,et al."Experimental Research on Thermocapillary-Buoyancy Migration Interaction of Axisymmetric Two Drops by Using Digital Holographic Interferometry".MICROGRAVITY SCIENCE AND TECHNOLOGY 30.3(2018):183-193.
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