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Title:
On the stability of thermocapillary convection of a Bingham fluid in an infinite liquid layer
Author: Hu KX(胡凯鑫); He M; Chen QS(陈启生); Liu R(刘荣)
Source: INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Issued Date: 2018-07-01
Volume: 122, Pages:993-1002
English Abstract: The linear stability of thermocapillary liquid layer of a Bingham-plastic fluid is studied. Due to the yield stress of Bingham fluid, there is a plug region in the flow, which divides the yielded flow into two regions. When the flow is subjected to a small perturbation, the velocity perturbation below the upper surface of plug region is negligible, while the temperature perturbation can be found in all flow regions at moderate and small Prandtl numbers (Pr). The perturbation amplitude of the upper surface of plug region decreases rapidly with the increase of Pr. The preferred modes are the upstream oblique wave and the downstream streamwise wave at small and large Pr, respectively. The effects of the yield stress, gravity and the interfacial heat transfer on the flow stability are discussed. The perturbation amplitude only appears above the plug region, which differs from the cases in the plane Bingham-Poiseuille flow and the thermocapillary liquid layer of a Carreau fluid. (C) 2018 Elsevier Ltd. All rights reserved.
Language: 英语
Indexed Type: SCI ; EI
DOI: 10.1016/j.ijheatmasstransfer.2018.02.048
DOC Type: Article
WOS Subject: Thermodynamics ; Engineering, Mechanical ; Mechanics
WOS Subject Extended: Thermodynamics ; Engineering ; Mechanics
WOS Keyword Plus: POISEUILLE FLOW ; LINEAR-STABILITY ; SURFACE-TENSION ; INSTABILITIES ; GRAVITY ; MODEL ; FILM
WOS ID: WOS:000431933500085
ISSN: 0017-9310
Funder: National Natural Science Foundation of China(11402271 ; K.C. Wong Magna Fund in Ningbo University ; 11532015 ; U1738119)
Classification: 一类
Ranking: 3
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/77465
Appears in Collections:国家微重力实验室_期刊论文

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Recommended Citation:
Hu KX,He M,Chen QS,et al. On the stability of thermocapillary convection of a Bingham fluid in an infinite liquid layer[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2018-07-01,122:993-1002.
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所有评论 (1)
陈启生
2018-08-03 12:51

第一作者:胡开鑫

 
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