Numerical Solution of Two-Dimensional Turbulent Separated Flows Using a Reynolds Stress Closure Model

[+] Author and Article Information
M. C. Celenligil

Department of Aeronautics, Imperial College, London SW7 2BY, England

G. L. Mellor

Mechanical and Aerospace Engineering Department, Princeton University, Princeton, N.J. 08544

J. Fluids Eng 107(4), 467-476 (Dec 01, 1985) (10 pages) doi:10.1115/1.3242515 History: Received December 13, 1982; Online October 26, 2009


Turbulent boundary layer separation is studied using the turbulence closure model suggested by Mellor and Yamada. An explicit central finite-differencing scheme is used to solve the governing transport equations. Three flow problems are considered: separation on a flat surface, separation and reattachment over a backward-facing step, and turbulent free shear layer with streamwise curvature. In the problem of separation behind a backward-facing step, nearly cyclic vortex shedding is obtained whereas the other two problems are stationary. The computed results for both mean and turbulence quantities are in fairly good agreement with experimental data.

Copyright © 1985 by ASME
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