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Two-phase flow in capillary tubes

. Department of Mechanical Engineering, Massachusetts Institute of Technology, Doctor of Science, (March 1963)

Abstract

The flow of two phases, gas and liquid, has been studied in horizontal tubes of capillary diameter. The flow has been primarily studied from the wall of the tube by a liquid film and from each other by slugs of liquid. In this regime the pressure drop, density and, to a certain extent, the thickness of the liquid film around a bubble have been correlated. The conditions under which the long bubble flow can exist and under which the correlations are valid have been determined. Of special interest is that the correlations should be valid in a zero gravity field.

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