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Experimental study of thermocapillary flows in a thin liquid layer with heat fluxes imposed on the free surfaceTo study thermocapillary flows in a two-dimensional thin liquid layer with heat fluxes imposed on the free surface experimentally, a long tray configuration was employed to simulate the infinite layer. The surface temperature distribution due to thermocapillary convection for different flow regimes was measured and compared with theorectical predictions. A short tray configuration was also employed to study the end wall effects (insulating or conducting). The results show that, for a strong convection flow with an insulating wall as the boundary, the surface temperature distribution became quite uniform. Consequently, the thermocapillary driving force was greatly reduced. On the other hand, a strong fluid motion always existed adjacent to the conducting wall because of the large surface temperature gradient near the wall.
Document ID
19880061860
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lai, Chun-Liang
(National Taiwan University Taipei, Republic of China, United States)
Greenberg, Paul S.
(National Taiwan Univ. Taipei, Taiwan, Province Of China)
Chai, An-Ti
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 13, 2013
Publication Date
August 1, 1988
Publication Information
Publication: Metallurgical Transactions A - Physical Metallurgy and Materials Science
Volume: 19A
ISSN: 0360-2133
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
88A49087
Distribution Limits
Public
Copyright
Other

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