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Instabilities of thermocapillary-buoyancy convection in open rectangular liquid layers
Jiang H(姜欢); Duan L(段俐); Kang Q(康琦)
Source PublicationCHINESE PHYSICS B
2017-11-01
Volume26Issue:11Pages:114703-1-114703-8
ISSN1674-1056
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.

KeywordThermocapillary-buoyancy Convection Instability Open Rectangular Liquid Layer Spatiotemporal Evolution
DOI10.1088/1674-1056/26/11/114703
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000415073400003
WOS KeywordHydrothermal Waves ; Marangoni Convection ; Surface
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Funding OrganizationStrategic 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)
CSCD IDCSCD:6125788
DepartmentNML微重力实验流体力学
ClassificationQ3
Ranking1
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/71929
Collection国家微重力实验室
Corresponding AuthorDuan L(段俐); Kang Q(康琦)
Recommended Citation
GB/T 7714
Jiang H,Duan L,Kang Q. Instabilities of thermocapillary-buoyancy convection in open rectangular liquid layers[J]. CHINESE PHYSICS B,2017,26(11):114703-1-114703-8.
APA Jiang H,Duan L,&Kang Q.(2017).Instabilities of thermocapillary-buoyancy convection in open rectangular liquid layers.CHINESE PHYSICS B,26(11),114703-1-114703-8.
MLA Jiang H,et al."Instabilities of thermocapillary-buoyancy convection in open rectangular liquid layers".CHINESE PHYSICS B 26.11(2017):114703-1-114703-8.
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