| Thermocapillary Migration Of Nondeformable Drops |
| Yin ZH(尹兆华) ; Gao P(高鹏); Hu WR(胡文瑞); Chang L(常磊); Yin, Z (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China.
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| Source Publication | Physics of Fluids
(IF:2.627[JCR-2018],2.84[5-Year]) |
| 2008
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| ISSN | 1070-6631
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| Abstract | In this paper, we present a numerical study on the thermocapillary migration of drops. The Navier-Stokes equations coupled with the energy conservation equation are solved by the finite-difference front-tracking scheme. The axisymmetric model is adopted in Our simulations, and the drops are assumed to be perfectly spherical and nondeformable. The benchmark simulation starts from the classical initial condition with a uniform temperature gradient. The detailed discussions and physical explanations of migration phenomena are presented for the different values of (1) the Marangoni numbers and Reynolds numbers of continuous phases and drops and (2) the ratios of drop densities and specific heats to those of continuous phases. It is found that fairly large Marangoni numbers may lead to fluctuations in drop velocities at the beginning part of simulations. Finally, we also discuss the influence of initial conditions on the thermocapillary migrations. (C) 2008 American Institute of Physics. |
| Keyword | Large Marangoni Numbers
Vertical Temperature-gradient
Front-tracking Method
Gas Bubble
Numerical-simulation
Thermal-gradient
Reduced Gravity
Motion
Droplets
Microgravity
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| DOI | 10.1063/1.2965549
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| Indexed By | SCI
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| Language | 英语
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| WOS ID | WOS:000259449000004
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| WOS Keyword | LARGE MARANGONI NUMBERS
; VERTICAL TEMPERATURE-GRADIENT
; FRONT-TRACKING METHOD
; GAS BUBBLE
; NUMERICAL-SIMULATION
; THERMAL-GRADIENT
; REDUCED GRAVITY
; MOTION
; DROPLETS
; MICROGRAVITY
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| WOS Research Area | Mechanics
; Physics
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| WOS Subject | Mechanics
; Physics, Fluids & Plasmas
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| Citation statistics |
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| Document Type | 期刊论文
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| Identifier | http://dspace.imech.ac.cn/handle/311007/25896
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| Collection | 力学所知识产出(1956-2008)
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| Corresponding Author | Yin, Z (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100190, Peoples R China. |
Recommended Citation
GB/T 7714 |
Yin ZH,Gao P,Hu WR,et al. Thermocapillary Migration Of Nondeformable Drops[J]. Physics of Fluids,2008.
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| APA |
尹兆华,高鹏,胡文瑞,常磊,&Yin, Z .(2008).Thermocapillary Migration Of Nondeformable Drops.Physics of Fluids.
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| MLA |
尹兆华,et al."Thermocapillary Migration Of Nondeformable Drops".Physics of Fluids (2008).
|
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