Two-Phase Void Fraction and Pressure Drop in Horizontal Crossflow Across a Tube Bundle

[+] Author and Article Information
G. P. Xu, K. W. Tou, C. P. Tso

School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798

J. Fluids Eng 120(1), 140-145 (Mar 01, 1998) (6 pages) doi:10.1115/1.2819638 History: Received November 07, 1995; Revised July 24, 1997; Online December 04, 2007


Void fraction and friction pressure drop measurements were made for an adiabatic, horizontal two-phase flow of air-water, air-oil across a horizontal in-line, 5 × 20 tube bundle with pitch-to-diameter ratio, P/D, of 1.28. For both air-water and air-oil flow, the experimental results showed that the average void fraction were less than the values predicted by a homogenous flow model, but were well correlated with the Martinelli parameter Xtt and liquid-only Froude number FrLO . The two-phase friction multiplier data exhibited an effect of flow pattern and mass velocity, and they could be well-correlated with the Martinelli parameter.

Copyright © 1998 by The American Society of Mechanical Engineers
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