Simulating Boundary Layer Transition With Low-Reynolds-Number k–ε Turbulence Models: Part 1—An Evaluation of Prediction Characteristics

[+] Author and Article Information
R. C. Schmidt, S. V. Patankar

Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455

J. Turbomach 113(1), 10-17 (Jan 01, 1991) (8 pages) doi:10.1115/1.2927728 History: Received June 01, 1990; Online June 09, 2008


An analysis and evaluation of the capability of k –ε low-Reynolds-number turbulence models to predict transition in external boundary-layer flows subject to free-stream turbulence is presented. The similarities between the near-wall cross-stream regions in a fully turbulent boundary layer and the progressive stages through which developing boundary layers pass in the streamwise direction are used to describe the mechanisms by which the models simulate the transition process. Two representative models (Jones and Launder, 1972; Lam and Bremhorst, 1981) are employed in a series of computational tests designed to answer some specific practical questions about the ability of these models to yield accurate, reliable answers over a range of free-stream turbulence conditions.

Copyright © 1991 by The American Society of Mechanical Engineers
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