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RESEARCH PAPERS

Calculations of Wall Shear Stress in Harmonically Oscillated Turbulent Pipe Flow Using a Low-Reynolds-Number k-ε Model

[+] Author and Article Information
J. O. Ismael, M. A. Cotton

School of Engineering, University of Manchester, Manchester M13 9PL, United Kingdom

J. Fluids Eng 118(1), 189-194 (Mar 01, 1996) (6 pages) doi:10.1115/1.2817500 History: Received April 21, 1994; Revised May 25, 1995; Online December 04, 2007

Abstract

The low-Reynolds-number k-ε turbulence model of Launder and Sharma is applied to the calculation of wall shear stress in spatially fully-developed turbulent pipe flow oscillated at small amplitudes. It is believed that the present study represents the first systematic evaluation of the turbulence closure under consideration over a wide range of frequency. Model results are well correlated in terms of the parameter ω+ = ωv/Uτ 2 at high frequencies, whereas at low frequencies there is an additional Reynolds number dependence. Comparison is made with the experimental data of Finnicum and Hanratty.

Copyright © 1996 by The American Society of Mechanical Engineers
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