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Oscillatory Thermocapillary Flow Experiment-2 (OTFE-2)Oscillatory thermocapillary flow experiments were performed in the Glovebox aboard the USML-2 Spacelab which was launched on October 20, 1995. Open cylindrical containers of 1.2 and 2.0 cm in diameter were used. The ratio of container depth to radius (aspect ratio) was set at 0.5 and 2. Silicone oil of 2 centistokes kinematic viscosity was the test fluid. The fluid was heated by a cylindrical heater placed along the center axis of the container. The fluid motion was studied by flow visualization. The effect of aspect ratio on the onset of oscillations and on the oscillatory flow was investigated. It was found that the onset of oscillations was delayed when the container was made more shallow.
Document ID
19990009688
Acquisition Source
Headquarters
Document Type
Other
Authors
Kamotani, Yasuhiro
(Case Western Reserve Univ. Cleveland, OH United States)
Ostrach, Simon
(Case Western Reserve Univ. Cleveland, OH United States)
Pline, Alexander D.
(NASA Headquarters Washington, DC United States)
Date Acquired
August 19, 2013
Publication Date
August 1, 1998
Publication Information
Publication: Second United States Microgravity Laboratory: One Year Report
Volume: 2
Subject Category
Fluid Mechanics And Heat Transfer
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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