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Aspect-ratio dependent oscillatory thermocapillary convection in the floating half zone
A Y(阿燕); Li K(李凯); Cao ZH(曹重华); Hu WR(胡文瑞); Hu, WR (reprint author), Chinese Acad Sci, Key Lab Micrograv, Inst Mech, Beijing 100190, Peoples R China
Source PublicationScience China-Physics Mechanics & Astronomy
2011
Volume54Issue:2Pages:338-341
ISSN1674-7348
AbstractThe dependency of the critical Marangoni number on the geometrical aspect ratio of the floating half zone is essential to predict the onset of oscillatory thermocapillary convection. The experimental studies in the microgravity conditions on floating half zones of several centimeters in diameter have predicted that the critical Marangoni number increases with the increasing aspect ratio, and the terrestrial experimental studies have predicted the contradictory conclusion for floating half zones of several millimeters in diameter. In the present work, terrestrial experimental studies were conducted on the floating half zones of 5 Centistokes (cSt) silicon oil and 10 cSt silicon oil. The experimental results show that the critical Marangoni number generally increases with the increasing aspect ratio of the floating half zone and then decreases. Moreover, a further increase of the critical Marangoni number with the increasing aspect ratio occurs for the slender floating half zones.
KeywordThermocapillary Convection Flow Instability Aspect Ratio Liquid Bridge Volume Onset Instability Simulation Surface
Subject AreaPhysics
DOI10.1007/s11433-010-4208-6
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000287452300026
WOS KeywordLIQUID BRIDGE VOLUME ; ONSET ; INSTABILITY ; SIMULATION ; SURFACE
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationThis work was supported by the National Natural Science Foundation of China (Grant No. 11032011) and Knowledge Innovation Project of the Chinese Academy of Sciences (Grant No. KJCX2-YW-L08).
DepartmentNML空间流体行为和界面现象研究
Classification二类/Q3
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45105
Collection国家微重力实验室
Corresponding AuthorHu, WR (reprint author), Chinese Acad Sci, Key Lab Micrograv, Inst Mech, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
A Y,Li K,Cao ZH,et al. Aspect-ratio dependent oscillatory thermocapillary convection in the floating half zone[J]. Science China-Physics Mechanics & Astronomy,2011,54(2):338-341.
APA 阿燕,李凯,曹重华,胡文瑞,&Hu, WR .(2011).Aspect-ratio dependent oscillatory thermocapillary convection in the floating half zone.Science China-Physics Mechanics & Astronomy,54(2),338-341.
MLA 阿燕,et al."Aspect-ratio dependent oscillatory thermocapillary convection in the floating half zone".Science China-Physics Mechanics & Astronomy 54.2(2011):338-341.
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