Thermocapillary effect on the absolute and convective instabilities of film flows down a fibre
文献类型：期刊论文
| 作者 | Liu R(刘荣) ; Ding ZJ(丁子敬); Zhu ZQ(朱志强)
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| 刊名 | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
 |
| 出版日期 | 2017-09-01 |
| 卷号 | 112页码:918-925 |
| 关键词 | Film flow Marangoni effect Absolute and convective instabilities |
| ISSN号 | 0017-9310 |
| 中文摘要 | We consider the motion of a gravity-driven flow down a uniformly heated vertical fibre. This flow exhibits rich dynamics including the formation of droplets, or beads, driven by a Rayleigh-Plateau mechanism modified by the presence of gravity as well as the thermocapillarity at the interface. A spatio-temporal stability analysis is performed to investigate the effect of thermocapillarity (Marangoni effect) on the convective/absolute instability (Cl/AI) characteristics of the problem. We also performed a numerical simulation of Eq. (30) on the nonlinear evolution of the film to connect the breakup behaviours with the Cl/AI characteristics. Our numerical results showed that for various Marangoni number (Ma), breakup of the film mainly occurs in the AI regime. With the increase of Ma, the film has a tendency to break up into droplets due to the enhancement of the absolute instability. (C) 2017 Elsevier Ltd. All rights reserved. |
| 类目[WOS] | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| 研究领域[WOS] | Thermodynamics ; Engineering ; Mechanics |
| 关键词[WOS] | VERTICAL FIBER ; DROP FORMATION ; VISCOUS BEADS |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000404198600081 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/60628]  |
| 专题 | 力学研究所_国家微重力实验室 |
| 推荐引用方式 GB/T 7714 | Liu R,Ding ZJ,Zhu ZQ. Thermocapillary effect on the absolute and convective instabilities of film flows down a fibre[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2017,112:918-925. |
| APA | 刘荣,丁子敬,&朱志强.(2017).Thermocapillary effect on the absolute and convective instabilities of film flows down a fibre.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,112,918-925. |
| MLA | 刘荣,et al."Thermocapillary effect on the absolute and convective instabilities of film flows down a fibre".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 112(2017):918-925. |
入库方式： OAI收割
来源：力学研究所
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