Multiphase Science and Technology A Quarterly

ISSN for PRINT: 0276-1459

For Online Access

Best Paper Award Selection - Editorial Board Site

2002, Volume14

Issue 1

110 pages

Issue price - $140.00

L. Lau
Department of Chemical Engineering and Chemical Technology Imperial College of Science, Technology and Medicine London SW7 2BY

M. A. Mendes Tatsis
Department of Chemical Engineering and Chemical Technology Imperial College of Science, Technology and Medicine London SW7 2BY

Geoffrey F. Hewitt
Department of Chemical Engineering & Chemical Technology, Imperial College of Science, Technology & Medicine, Prince Consort Road, London SW7 2BY UK

A prediction methodology for pressure gradient in vertical counter-current air-water flow is presented based on empirical data for downward falling film flow at 3.78 ґ 10^-3, 10.08 ґ 10^-3, 2.52 ґ 10^-3 and 37.80 ґ 10^-3 kg/s in the presence of an upward air stream flowing rates ranging from ~ 2.5 ґ 10^-4 to 142.0 ґ 10^-4 kg/s. The method devised is an extension of the previous study by Hewitt et al. (1965) and has been developed to have as input the length of tube and air and liquid falling film flow rates.

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