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Bubble migration in a rotating, liquid-filled sphereResults and analysis of ground-based experiments performed to aid in designing experiments on the behavior of bubbles in a rotating liquid body on board the Shuttle in free fall are presented. Spherical shells filled with silicone oil containing a small gas bubble were spun and filmed by high speed motion picture photography. The rotation of the shell and the trajectory of the bubble motion were recorded and the film was exposed to a motion analyzer connected to a keypunch. The analyzer measured Cartesian coordinates as well as angle, frame number, and rotation rate. Optical correction equations were employed to determine the apparent bubble trajectory relative to an inertial frame of reference. An analytical model for the bubble motion was defined, yielding predictions of velocity and position at different times. Rotation of the fluid container is concluded to aid in centering the bubbles.
Document ID
19820054947
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Annamalai, P.
(Clarkson Coll. of Technology Potsdam, NY, United States)
Subramanian, R. S.
(Clarkson Coll. of Technology Potsdam, NY, United States)
Cole, R.
(Clarkson College of Technology Potsdam, NY, United States)
Date Acquired
August 10, 2013
Publication Date
July 1, 1982
Publication Information
Publication: Physics of Fluids
Volume: 25
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
82A38482
Funding Number(s)
CONTRACT_GRANT: NAS8-32944
Distribution Limits
Public
Copyright
Other

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