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RESEARCH PAPERS

Toward a Pointwise Turbulence Model for Wall-Bounded and Free Shear Flows

[+] Author and Article Information
Uriel C. Goldberg

Rockwell International Science Center, Thousand Oaks, CA 91360

J. Fluids Eng 116(1), 72-76 (Mar 01, 1994) (5 pages) doi:10.1115/1.2910245 History: Received October 07, 1992; Revised August 16, 1993; Online May 23, 2008

Abstract

A modified version of the Baldwin-Barth k-ℜ two-equation turbulence model is proposed, in which the near-wall function fμ is based on the ratio of the large eddy and the Kolmogorov time scales. This results in a model applicable to both wall-bounded and free shear flows which, nevertheless, does not require explicit knowledge of local distance to walls, rendering it useful within both structured and unstructured computational frameworks for flow predictions involving complex geometries. The new model’s predictive capability is demonstrated through a number of flow cases.

Copyright © 1994 by The American Society of Mechanical Engineers
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