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Transition to chaos in thermocapillary convection
Zhu P(朱鹏); Duan L(段俐); Kang Q(康琦); Kang, Q (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
2013-02
Volume57Issue:2Pages:457-464
ISSN0017-9310
AbstractWe present experiments on transition to chaos in thermocapillary convection in a rectangular pool of silicone oil. The applied temperature difference between the two sidewalls is adjusted in the range of 0-43 degrees C to observe various dynamic states. The applied temperature gradient along the fluid-gas interface drives shear flow along the free surface from hot to cold and a back flow in the underlying layer. With the increase of the temperature gradient, the thermocapillary convection will transit from steady flow to regularly oscillatory flow, and finally to chaos. A temperature measurement system, which consists of thermocouple, voltmeter and data-acquiring computer, is used to record the temperature of the liquid dynamically. In order to identify the different dynamic regimes from steady flow to chaos, fast Fourier transform and fractal theory are used to analyze the experimental data. The critical conditions for transition have been obtained and discussed by non-dimensional analysis. The quasi-periodic route and Feigenbaum route were observed for different experimental conditions, and the relationship between oscillatory frequency and Marangoni number Ma has been discussed.
KeywordThermocapillary Convection Transition To Chaos Critical Condition Transition Route
Subject Area流体力学
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000313850100003
Funding OrganizationNational Nature Science Foundation of China [10972224, 11032011]; Knowledge Innovation Program of Chinese Academy of Sciences [KJCX2-YW-L08]
DepartmentNML微重力实验流体力学
Classification一类
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Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47015
Collection国家微重力实验室
Corresponding AuthorKang, Q (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhu P,Duan L,Kang Q,et al. Transition to chaos in thermocapillary convection[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2013,57(2):457-464.
APA Zhu P,Duan L,Kang Q,&Kang, Q .(2013).Transition to chaos in thermocapillary convection.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,57(2),457-464.
MLA Zhu P,et al."Transition to chaos in thermocapillary convection".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 57.2(2013):457-464.
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