Three-phase (C/L/S) horizontal pipe flow data collected from the literature are used to evaluate the performance of a number of correlations designed to predict the pipeline pressure gradient. In the presentstudy, a number of populartwo-phase gas-liquid pressure loss correlations were modified for three-phase flow predictions. The primary modification is to assume that the slurry (L/S) mixture behaves as a singlephase. The modified Dukler and the Beggs and Brill correlations did not provide accurate estimates of the three-phase pressure gradients. When the classical Lockhart-Martinelli (L-M) correlation was used, along with a kinematic friction loss model to calculate the slurry (L/S) superficial flow pressure gradient, accurate predictions of the three-phase (G/L/S) pressure gradient were obtained provided the slurry did not exhibit non-Newtonian behaviour and that Coulombic (sliding bed) friction was negligible. Additional experiments should be conducted before the improved version of the L-M correlation is applied to commercial installations with pipe diameters greater than 100 mm.
An improved method for applying the Lockhart-Martinelli correlation to three-phase gas-llquid-solid horizontal pipeline flows
2013
11 Seiten, 7 Bilder, 3 Tabellen, 59 Quellen
Conference paper
English
Condensing pressure drop by improved Lockhart-Martinelli method
TIBKAT | 1964
|Blueprint of Lockhart accident accompanies
Engineering Index Backfile | 1928
|STS-111 Crew Interviews: Paul Lockhart, Pilot
NTRS | 2002
STS-113 Crew Interviews: Paul Lockhart, Pilot
NTRS | 2002
Lockhart crashes while traveling at 225 M. P. H.
Engineering Index Backfile | 1928
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