NDLI: On-board Experimental Study of Bubble Thermocapillary Migration in a Recoverable Satellite

Content Provider	Springer Nature Link
Author	Kang, Q. Cui, H. L. Hu, L. Duan, L.
Copyright Year	2008
Abstract	An on-board space experiment of bubble thermocapillary migration was performed in the Chinese 22nd recoverable satellite in 2005. Silicone oil of nominal viscosity 5cSt was used as the continuous phase in the experiment. Air bubbles were injected into the liquid in the same direction as the constant temperature gradient in the liquid. The velocities of bubbles were obtained by recording the paths of the bubbles. The results indicate that the scaled velocity of bubbles decreases with an increase of the Marangoni number extended to 9288, which agrees with the results of previous space experiments and numerical simulation. In addition, the interaction between two bubbles was also observed in the space experiment. The trajectories and the velocities of the bubbles were obtained. The two-bubble experiment results are also consistent with the theoretical analysis.
Starting Page	67
Ending Page	71
Page Count	5
File Format	PDF
ISSN	09380108
Journal	Microgravity Science and Technology
Volume Number	20
Issue Number	2
e-ISSN	18750494
Language	English
Publisher	Springer Netherlands
Publisher Date	2008-03-28
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Space experiment Thermocapillary migration Bubble interaction Microgravity fluid Mechanics, Fluids, Thermodynamics Extraterrestrial Physics, Space Sciences Space Exploration and Astronautics
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Physics and Astronomy Engineering Modeling and Simulation

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