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Title:
Instabilities of thermocapillary-buoyancy convection in open rectangular liquid layers
Author: Jiang H(姜欢); Duan L(段俐); Kang Q(康琦)
Source: CHINESE PHYSICS B
Issued Date: 2017-11-01
Volume: 26, Issue:11
Abstract: This article presents the experimental investigation on instabilities of thermocapillary- buoyancy convection in the transition process in an open rectangular liquid layer subject to a horizontal temperature gradient. In the experimental run, an infrared thermal imaging system was constructed to observe and record the surface wave of the rectangular liquid layer. It was found that there are distinct convection longitudinal rolls in the flow field in the thermocapillary- buoyancy convection transition process. There are different wave characterizations for liquid layers with different thicknesses. For sufficiently thin layers, oblique hydrothermal waves are observed, which was predicted by the linear-stability analysis of Smith & Davis in 1983. For thicker layers, the surface flow is distinct and intensified, which is because the buoyancy convection plays a dominant role and bulk fluid flow from hot wall to cold wall in the free surface of liquid layers. In addition, the spatiotemporal evolution analysis has been carried out to conclude the rule of the temperature field destabilization in the transition process.
Keyword: thermocapillary-buoyancy convection ; instability ; open rectangular liquid layer ; spatiotemporal evolution
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Duan, L ; Kang, Q (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Beijing 100190, Peoples R China. ; Duan, L ; Kang, Q (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
Correspondent Email: duanli@imech.ac.cn ; kq@imech.ac.cn
DOI: 10.1088/1674-1056/26/11/114703
DOC Type: Article
WOS Subject: Physics, Multidisciplinary
WOS Subject Extended: Physics
WOS Keyword Plus: HYDROTHERMAL WAVES ; MARANGONI CONVECTION ; SURFACE
WOS ID: WOS:000415073400003
ISSN: 1674-1056
Funder: Strategic Priority Research Program on Space Science, Chinese Academy of Sciences: SJ-10 Recoverable Scientific Experiment Satellite(XDA04020405 ; China Manned Space Engineering program (TG-2), Cooperative Research Project between China and Russia ; National Natural Science Foundation of China(11372328) ; XDA04020202-05)
Department: NML微重力实验流体力学
Classification: Q3
Ranking: 1
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/71929
Appears in Collections:国家微重力实验室_期刊论文

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Recommended Citation:
Jiang H,Duan L,Kang Q. Instabilities of thermocapillary-buoyancy convection in open rectangular liquid layers[J]. CHINESE PHYSICS B,2017-11-01,26(11).
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