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RESEARCH PAPERS

Transient Gas-Liquid Flow in Upward Sloping Pipes, Approaching the Wavy-to-Slug Flow Transition

[+] Author and Article Information
Eric Grolman, Jan M. H. Fortuin

Department of Chemical Engineering, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands

J. Fluids Eng 118(4), 729-735 (Dec 01, 1996) (7 pages) doi:10.1115/1.2835502 History: Received November 04, 1995; Revised May 23, 1996; Online January 22, 2008

Abstract

A model is presented for transient, cocurrent gas-liquid pipe flow in the stratified-smooth and stratified-wavy flow regimes. It is based on the equations of continuity and motion in the direction of flow and results in two hyperbolic partial differential equations, which are solved numerically using the combined methods of lines (Schiesser, 1991) and characteristics (Stoker, 1957). In wavy gas-liquid pipe flow, three different interfacial areas and corresponding shear stresses are identified. Three friction-factor correlations were derived on the basis of an extensive set of 2500 steady-state measurements. The transient behavior of inclined gas-liquid pipe flow is successfully simulated and compares well with the results obtained from on-line measurements, right up to the onset of slug flow.

Copyright © 1996 by The American Society of Mechanical Engineers
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