Flaccid Bodies Move Faster in Fluids

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Year:
2015
Type of Publication:
Article
Keywords:
Large Bubbles, Buoyancy, Shape and Speed
Authors:
Kern E. Kenyon
Journal:
IJISM
Volume:
3
Number:
1
Pages:
7-8
Month:
Jan.-Feb.
ISSN:
2347-–9
Abstract:
A large air bubble’s buoyancy rising in still water is predicted to be significantly greater for a spherical segment, as commonly observed, than for a motionless whole sphere of equal volume from which it may have initially arisen. As a consequence, at terminal velocity the total force of friction on the large bubble is greater than it would have been if the bubble had maintained its spherical shape.

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