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RESEARCH PAPERS: Forced Convection

A Velocity and Length Scale Approach to k–ε Modeling

[+] Author and Article Information
O. Kwon, F. E. Ames

Heat Transfer Department, Allison Engine Company, P.O. Box 420, Indianapolis, IN 46206

J. Heat Transfer 118(4), 857-863 (Nov 01, 1996) (7 pages) doi:10.1115/1.2822581 History: Received January 11, 1996; Revised June 06, 1996; Online December 05, 2007

Abstract

This paper describes a velocity and length scale approach to low-Reynolds-number k–ε modeling, which formulates the eddy viscosity on the normal component of turbulence and a length scale. The normal component of turbulence is modeled based on the dissipation and distance from the wall and is bounded by the isotropic condition. The model accounts for the anisotropy of the dissipation and the reduced length of mixing in the near wall region. The kinetic energy and dissipation rate were computed from the k and ε transport equations of Durbin (1993). The model was tested for a wide range of turbulent flows and proved to be superior to other k–ε based models.

Copyright © 1996 by The American Society of Mechanical Engineers
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