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Vertical upward cocurrent gas‐liquid annular flow
Author(s) -
Zabaras G.,
Dukler A. E.,
MoalemMaron D.
Publication year - 1986
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690320513
Subject(s) - flow (mathematics) , mechanics , materials science , pressure gradient , shear stress , volumetric flow rate , liquid flow , gas pressure , optics , chemistry , composite material , geology , physics , petroleum engineering
Upward cocurrent gas‐liquid annular flow was investigated in a 50.8 mm ID cylindrical vertical pipe. The film flow was studied by measuring instantaneous local film thickness, wall shear stress, and pressure gradient. Analysis of these data revealed that at low gas flow rates the film motion is controlled by a switching mechanism, as speculated by Moalem‐Maron and Dukler (1984). In the region of high gas flow rates the switching process is suppressed and traveling roll waves characterize the film motion.