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Instability of thermocapillary liquid layers for Oldroyd-B fluid
Hu KX(胡开鑫); He M; Chen QS(陈启生); Reprint Author: Hu KX;Chen QS
Source PublicationPHYSICS OF FLUIDS
2016
Volume28Issue:3Pages:33105
ISSN1070-6631
Abstract

The linear stability analysis of Oldroyd-B fluid for thermocapillary liquid layers is carried out. Results are presented for linear flow and return flow with Prandtl numbers of 0.02 and 100. Three kinds of instabilities are found: oblique wave, streamwise wave, and spanwise stationary mode, whose properties are all significantly affected by elasticity. For the first, the critical Marangoni number increases with elasticity. For the second, the work done by perturbation stress fluctuates in vertical direction. The last becomes the preferred mode when the elasticity is high enough and its perturbation energy comes from the Marangoni force caused by perturbation temperature while dissipates by perturbation stress. Their mechanisms are discussed and the comparisons are made with Newtonian fluid. (C) 2016 AIP Publishing LLC.

DOI10.1063/1.4943971
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000373600600022
WOS Research AreaMechanics ; Physics
WOS SubjectMechanics ; Physics, Fluids & Plasmas
Funding OrganizationThis work has been supported by the National Natural Science Foundation of China (Nos. 11272320, 11402271, and 11532015).
DepartmentNML流动稳定性与复杂流动
Classification一类
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59567
Collection国家微重力实验室
Corresponding AuthorReprint Author: Hu KX;Chen QS
Recommended Citation
GB/T 7714
Hu KX,He M,Chen QS,et al. Instability of thermocapillary liquid layers for Oldroyd-B fluid[J]. PHYSICS OF FLUIDS,2016,28(3):33105.
APA Hu KX,He M,Chen QS,&Reprint Author: Hu KX;Chen QS.(2016).Instability of thermocapillary liquid layers for Oldroyd-B fluid.PHYSICS OF FLUIDS,28(3),33105.
MLA Hu KX,et al."Instability of thermocapillary liquid layers for Oldroyd-B fluid".PHYSICS OF FLUIDS 28.3(2016):33105.
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