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RESEARCH PAPERS

An Eddy Viscosity Calculation Method for a Turbulent Duct Flow

[+] Author and Article Information
R. A. Antonia, D. K. Bisset

Department of Mechanical Engineering, University of Newcastle, N.S.W., 2308, Australia

J. Kim

Center for Turbulence Research, NASA-Ames Research Center, Moffett Field, CA, 94035

J. Fluids Eng 113(4), 616-619 (Dec 01, 1991) (4 pages) doi:10.1115/1.2926524 History: Received October 17, 1990; Online May 23, 2008

Abstract

The mean velocity profile across a fully developed turbulent duct flow is obtained from an eddy viscosity relation combined with an empirical outer region wake function. Results are in good agreement with experiments and with direct numerical simulations in the same flow at two Reynolds numbers. In particular, the near-wall trend of the Reynolds shear stress and its variation with Reynolds number are similar to those of the simulations. The eddy viscosity method is more accurate than previous mixing length or implicit function methods.

Copyright © 1991 by The American Society of Mechanical Engineers
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