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Marangoni flow in floating half zone of molten tin
Li K(李凯); Matsumoto S; Imaishi N; Hu WR(胡文瑞); Li, K (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
2015-04
Volume83Pages:575-585
ISSN0017-9310
AbstractGravity affects the stability of Marangoni flow in floating half zone of low-Pr fluids through two different factors, i.e., the buoyancy and the static deformation of the free surface shape. In the present study, influence of these two factors are evaluated by unsteady three-dimensional (3D) simulations for a realistic model of floating half zone of molten tin (Pr = 0.009) with an aspect ratio As = 2.0 under a ramped temperature difference (1.19 K/rnin) between the top and bottom ends of two iron supporting rods. The corresponding first critical conditions for the onset of 3D asymmetric non-oscillatory flows and the second critical conditions for the onset of 3D oscillatory flows are determined. Simulation results indicate that the fee surface deformation is the most influential factor for the critical conditions of the flow transitions. Buoyancy is less influential to the flow transitions. However, buoyancy causes multiple step transitions between different 3D asymmetric non-oscillatory flow modes. (C) 2014 Elsevier Ltd. All rights reserved.
KeywordMarangoni Flow Flow Instabilities Deformed Half Zone Buoyancy
Subject AreaThermodynamics ; Engineering, Mechanical ; Mechanics
DOI10.1016/j.ijheatmasstransfer.2014.12.016
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000350080000056
WOS KeywordTHERMOCAPILLARY LIQUID BRIDGES ; PRANDTL NUMBER FLUID ; NUMERICAL-SIMULATION ; LINEAR-STABILITY ; CONVECTION ; INSTABILITIES
WOS Research AreaThermodynamics ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Engineering, Mechanical ; Mechanics
Funding OrganizationNational Natural Science Foundation of China [11032011, 11472282] ; Japan Society for Promotion of Science (KAKENHI) [17360087]
DepartmentNML空间流体行为和界面现象研究
Classification一类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49928
Collection国家微重力实验室
Corresponding AuthorLi, K (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Li K,Matsumoto S,Imaishi N,et al. Marangoni flow in floating half zone of molten tin[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2015,83:575-585.
APA 李凯,Matsumoto S,Imaishi N,胡文瑞,&Li, K .(2015).Marangoni flow in floating half zone of molten tin.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,83,575-585.
MLA 李凯,et al."Marangoni flow in floating half zone of molten tin".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 83(2015):575-585.
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