The Stability of an Annulus of Liquid in a Tube

[+] Author and Article Information
Peter Griffith

Massachusetts Institute of Technology, Cambridge, Mass.

Kyung Suh Lee

Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, Mass.

J. Basic Eng 86(4), 666-668 (Dec 01, 1964) (3 pages) doi:10.1115/1.3655917 History: Received August 13, 1963; Online November 03, 2011


An annulus of liquid on the walls of a tube is sometimes found to be unstable under the action of surface forces and to break up, spontaneously, into a series of bubbles. This process is a possible mechanism for the transition from annular to slug flow. The wavelength of the breakup is predictable from potential-flow theory and the essential correctness of the prediction shown from experiment. It is shown that for liquid volume fractions less than about 6 percent no breakup occurs. The time to breakup is not found to be predictable.

Copyright © 1964 by ASME
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