Two-Phase Flow From a Stratified Region Through a Small Side Branch

[+] Author and Article Information
I. G. Hassan, H. M. Soliman, G. E. Sims

Department of Mechanical and Industrial Engineering, University of Manitoba, Winnipeg, Manitoba, Canada R3T 5V6

J. E. Kowalski

Safety Thermalhydraulics Branch, AECL Research, Pinawa, Manitoba, Canada R0E 1L0

J. Fluids Eng 120(3), 605-612 (Sep 01, 1998) (8 pages) doi:10.1115/1.2820707 History: Received January 27, 1997; Revised February 24, 1998; Online January 22, 2008


Experimental data are presented for the mass flow rate and quality of two-phase (air-water) discharge through a small branch (6.35 mm i.d.) located on the side of a large reservoir under stratified conditions. These data correspond to different values of the interface level between the onsets of gas and liquid entrainments for test-section pressures ranging from 316 to 517 kPa, test-section-to-separator pressure differences ranging from 40 to 235 kPa, and different hydraulic resistances of the line connecting the test section and separator. Influences of these independent variables on the mass flow rate and quality are discussed and normalized plots are presented showing that the data can be collapsed for a wide range of conditions. Comparisons are made with previous investigations and new empirical correlations are formulated and shown to be capable of predicting the present data with good accuracy.

Copyright © 1998 by The American Society of Mechanical Engineers
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