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Effect of mutual location and the shape of heaters on the stability of thin films flowing over locally heated surfaces
Liu R(刘荣); Kabov OA; Liu, R (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
2013-10
Volume65Pages:23-32
ISSN0017-9310
AbstractWe consider the motion of a liquid film falling down a locally heated planar substrate. Marangoni effect due to the local temperature gradients at the free surface induces a three dimensional interfacial deformation near the vicinity of the heater. The objective of the present paper is to study the influence of streamwise arrangement of the heaters of rectangular shape or with infinite spanwise lengths on the structure of interfacial deformation and the stability of the film. The problem is studied in the framework of longwave theory. We studied the influence of mutual location of heaters on the steady state of the film. As the film is heated by heaters with infinite/finite spanwise lengths, 2D/3D steady states exist. A linear stability analysis is performed with respected to both the 2D and 3D basic state. The results show that the mutual location of heater plays an important role in the stability and transient behavior of the film for 2D steady state. However, the 3D steady state of a film heated by rectangular heaters is linear stable. This means that the 3D steady state is a coherent structure in films heated by rectangular heaters.
KeywordThin Film Locally Heated Marangoni Force
Subject Area流动的稳定性
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000324844800003
Funding OrganizationEuropean Space Agency (HEAT TRANSFER PRODEX Programme, Belgium); National Natural Science Foundation of China [11102211]; Belgian Federal Science Policy Office
DepartmentNML流动稳定性与复杂流动
Classification一类
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47497
Collection国家微重力实验室
Corresponding AuthorLiu, R (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Liu R,Kabov OA,Liu, R . Effect of mutual location and the shape of heaters on the stability of thin films flowing over locally heated surfaces[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2013,65:23-32.
APA 刘荣,Kabov OA,&Liu, R .(2013).Effect of mutual location and the shape of heaters on the stability of thin films flowing over locally heated surfaces.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,65,23-32.
MLA 刘荣,et al."Effect of mutual location and the shape of heaters on the stability of thin films flowing over locally heated surfaces".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 65(2013):23-32.
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