Upward-propagating capillary waves on the surface of short Taylor bubbles

Upward-propagating capillary waves are observed on the surface of short Taylor air bubbles rising in vertical pipes. The wave length distribution along the bubble surface is measured for bubbles rising in pipes of different diameters in stagnant and up-flowing water by digital image processing. It i...

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Bibliographic Details
Published inPhysics of fluids (1994) Vol. 18; no. 4; pp. 048103 - 048103-4
Main Authors Liberzon, Dan, Shemer, Lev, Barnea, Dvora
Format Journal Article
LanguageEnglish
Published Melville, NY American Institute of Physics 01.04.2006
Subjects
Drops and bubbles
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Nonhomogeneous flows
Physics
Gas liquid interface
Bubbles
Capillary waves
Wave propagation
Bubble ascent
Vertical pipe
Flow visualization
Experimental study
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Summary:Upward-propagating capillary waves are observed on the surface of short Taylor air bubbles rising in vertical pipes. The wave length distribution along the bubble surface is measured for bubbles rising in pipes of different diameters in stagnant and up-flowing water by digital image processing. It is shown that the waves are generated by bubble bottom oscillations, and their length is determined by wave-current interaction along the liquid film.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.2192781