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Experimental Visualization of Bubble Formation from an Orifice In Microgravity in the Presence of Electric FieldsThe formation of air bubbles injected into a stagnant, isothermal liquid in microgravity through an orifice was studied. The bubbles grew very large in microgravity. They attained a nearly spherical shape and showed pronounced affinity towards coalescence in the absence of electric fields and other perturbations. Under the influence of electric fields, periodic detachment was observed, with bubble sizes larger than in terrestrial conditions. The bubble shape was elongated. After detachment, the bubbles moved away from the electrode at which they formed without coalescing with other bubbles. Experimental data on bubble shape and size at detachment showed good agreement with models.
Document ID
20110000872
Acquisition Source
Glenn Research Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Herman, C.
(Johns Hopkins Univ. Baltimore, MD, United States)
Iacona, E.
(Johns Hopkins Univ. Baltimore, MD, United States)
Foldes, I. B.
(Hungarian Academy of Sciences Budapest, Hungary)
Suner, G.
(Johns Hopkins Univ. Baltimore, MD, United States)
Milburn, C.
(Johns Hopkins Univ. Baltimore, MD, United States)
Date Acquired
August 25, 2013
Publication Date
January 1, 2002
Publication Information
Publication: Experiments in Fluids
Publisher: Springer-Verlag
Volume: 32
Issue: 3
Subject Category
Fluid Mechanics And Thermodynamics
Funding Number(s)
CONTRACT_GRANT: NAG3-1815
Distribution Limits
Public
Copyright
Other

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