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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.
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
2017-09-01
Volume112Pages:918-925
ISSN0017-9310
AbstractWe 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.
KeywordFilm Flow Marangoni Effect Absolute And Convective Instabilities
DOI10.1016/j.ijheatmasstransfer.2017.05.030
Indexed BySCI ; EI
Language英语
WOS IDWOS:000404198600081
WOS KeywordVERTICAL FIBER ; DROP FORMATION ; VISCOUS BEADS
WOS Research AreaThermodynamics ; Engineering ; Mechanics
WOS SubjectThermodynamics ; Engineering, Mechanical ; Mechanics
Funding OrganizationNational Natural Science Foundation of China(11102211||11302236||11532015)
DepartmentNML流动稳定性与复杂流动
Classification一类
Ranking3
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60628
Collection国家微重力实验室
Corresponding AuthorDing, 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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