✦ LIBER ✦

Stability of gas bubbles rising in inviscid fluids

✍ Scribed by J. Berghmans

Publisher: Elsevier Science
Year: 1973
Tongue: English
Weight: 530 KB
Volume: 28
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(73)85044-4

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✦ Synopsis

A variational approach, based upon the principle of minimum total energy, is used to study the interfacial stability of small ellipsoidal gas bubbles moving upwards in liquids of small viscosity because of their buoyancy. Viscous and inertia effects are neglected, while the effects of gravity are taken into consideration in the stability analysis. Critical Weber and Bond numbers were determined at which the interface becomes unstable. The theoretical results are in good agreement with the experimental observations on air bubbles moving in filtered water.

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