Unified Model for Gas-Liquid Pipe Flow via Slug Dynamics—Part 1: Model Development
Author:
Zhang Hong-Quan1, Wang Qian1, Sarica Cem1, Brill James P.1
Affiliation:
1. TUFFP, The University of Tulsa, 600 S. College Ave., Tulsa, OK 74104
Abstract
A unified hydrodynamic model is developed for predictions of flow pattern transitions, pressure gradient, liquid holdup and slug characteristics in gas-liquid pipe flow at all inclination angles from −90° to 90° from horizontal. The model is based on the dynamics of slug flow, which shares transition boundaries with all the other flow patterns. By use of the entire film zone as the control volume, the momentum exchange between the slug body and the film zone is introduced into the momentum equations for slug flow. The equations of slug flow are used not only to calculate the slug characteristics, but also to predict transitions from slug flow to other flow patterns. Significant effort has been made to eliminate discontinuities among the closure relationships through careful selection and generalization. The flow pattern classification is also simplified according to the hydrodynamic characteristics of two-phase flow.
Publisher
ASME International
Subject
Geochemistry and Petrology,Mechanical Engineering,Energy Engineering and Power Technology,Fuel Technology,Renewable Energy, Sustainability and the Environment
Reference29 articles.
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, 1987, “A Unified Model for Predicting Flow-Pattern Transitions for the Whole Range of Pipe Inclinations,” Int. J. Multiphase Flow, 13, pp. 1–12.
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