Strouhal Numbers for Heat Exchanger Tube Arrays in Cross Flow

[+] Author and Article Information
D. S. Weaver

Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada

J. A. Fitzpatrick

Department of Mechanical and Manufacturing Engineering, Trinity College, Dublin, Ireland

M. ElKashlan

McMaster University, Hamilton, Ontario, Canada

J. Pressure Vessel Technol 109(2), 219-223 (May 01, 1987) (5 pages) doi:10.1115/1.3264899 History: Received March 21, 1986; Revised August 13, 1986; Online November 05, 2009


The prediction of tube or acoustic resonance due to cross-flow in heat exchangers is dependent upon knowledge of the flow characteristics for a given tube array geometry. For this, a Strouhal number relating a peak frequency in the turbulence spectrum to the velocity of the flow is required. The data available in the literature for this are rather confusing and the prediction methods appear somewhat contradictory. This paper reports the results from experiments conducted to determine Strouhal numbers for eight tube array models. These results together with the data available in the literature are then compared and appropriate conclusions drawn.

Copyright © 1987 by ASME
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