Affiliation:
1. Department of Mechanical Engineering, University of California, Berkeley, CA 94720
Abstract
A boundary integral analysis of the creeping motion of a long inviscid bubble in a liquid filled tube is presented. The effects of interfacial surface tension are included in the stress balance across the liquid-bubble interface. Velocities, stresses, and the bubble profile are obtained as a function of the capillary number. Computed values of the thickness of the liquid film between the bubble and tube wall are in excellent agreement with published experimental measurements. The results are of interest in exposing the role of surface tension in multiphase flow in capillary tubes and porous materials.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Cited by
56 articles.
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