| Thermocapillary effect on the absolute and convective instabilities of film flows down a fibre | |
Liu R(刘荣) ; Ding ZJ(丁子敬); Zhu ZQ(朱志强); Ding, ZJ (reprint author), Univ Bristol, Sch Math, Bristol BS8 1TW, Avon, England.
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| Source Publication | INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
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| 2017-09-01 | |
| Volume | 112Pages:918-925 |
| ISSN | 0017-9310 |
| Abstract | 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. |
| Keyword | Film Flow Marangoni Effect Absolute And Convective Instabilities |
| DOI | 10.1016/j.ijheatmasstransfer.2017.05.030 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000404198600081 |
| WOS Keyword | VERTICAL FIBER ; DROP FORMATION ; VISCOUS BEADS |
| WOS Research Area | Thermodynamics ; Engineering ; Mechanics |
| WOS Subject | Thermodynamics ; Engineering, Mechanical ; Mechanics |
| Funding Organization | National Natural Science Foundation of China(11102211||11302236||11532015) |
| Department | NML流动稳定性与复杂流动 |
| Classification | 一类 |
| Ranking | 3 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/60628 |
| Collection | 微重力重点实验室 |
| Corresponding Author | Ding, ZJ (reprint author), Univ Bristol, Sch Math, Bristol BS8 1TW, Avon, England. |
| Recommended Citation GB/T 7714 | Liu R,Ding ZJ,Zhu ZQ,et al. 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,&Ding, ZJ .(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. |
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| JouArt-2017-068.pdf（579KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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