Detailed Measurements of Vertical Annular Two-Phase Flow—Part I: Drop Velocities and Sizes

[+] Author and Article Information
B. J. Azzopardi

Department of Chemical Engineering, University of Nottingham, Nottingham NG7 2RD UK

J. C. F. Teixeira

Escola de Engenheria, Universidade do Minho, Braga, Portugal

J. Fluids Eng 116(4), 792-795 (Dec 01, 1994) (4 pages) doi:10.1115/1.2911851 History: Received October 07, 1993; Revised February 15, 1994; Online May 23, 2008


Phase anemometry and laser diffraction techniques have been employed to measure drop sizes in annular two-phase flow. The former technique also provides drop velocities. When converted to the same basis, the drop size distributions from the two techniques are in agreement. Drop velocities were 20 percent below the corresponding local velocities for the gas. Standard deviations of the drop velocities were 10 to 65 percent higher than those for the gas.

Copyright © 1994 by The American Society of Mechanical Engineers
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