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On the stability of thermocapillary convection of a Bingham fluid in an infinite liquid layer
Hu KX(胡凯鑫); He M; Chen QS(陈启生); Liu R(刘荣)
2018-07-01
发表期刊INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷号122页码:993-1002
ISSN0017-9310
摘要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.
DOI10.1016/j.ijheatmasstransfer.2018.02.048
收录类别SCI ; EI
语种英语
WOS记录号WOS:000431933500085
关键词[WOS]POISEUILLE FLOW ; LINEAR-STABILITY ; SURFACE-TENSION ; INSTABILITIES ; GRAVITY ; MODEL ; FILM
WOS研究方向Thermodynamics ; Engineering ; Mechanics
WOS类目Thermodynamics ; Engineering, Mechanical ; Mechanics
项目资助者National Natural Science Foundation of China(11402271 ; K.C. Wong Magna Fund in Ningbo University ; 11532015 ; U1738119)
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力学所作者排名3
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77465
专题国家微重力实验室
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GB/T 7714
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,2018,122:993-1002.
APA 胡凯鑫,He M,陈启生,&刘荣.(2018).On the stability of thermocapillary convection of a Bingham fluid in an infinite liquid layer.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,122,993-1002.
MLA 胡凯鑫,et al."On the stability of thermocapillary convection of a Bingham fluid in an infinite liquid layer".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 122(2018):993-1002.
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陈启生
2018-08-03 12:51

第一作者:胡开鑫

 

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