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RESEARCH PAPERS

Application of a K-ε Turbulence Model to Natural Convection From a Vertical Isothermal Surface

[+] Author and Article Information
O. A. Plumb, L. A. Kennedy

Mechanical Engineering Department, State University of New York at Buffalo, Buffalo, N. Y.

J. Heat Transfer 99(1), 79-85 (Feb 01, 1977) (7 pages) doi:10.1115/1.3450659 History: Received September 22, 1976; Online August 11, 2010

Abstract

A K-ε turbulence model similar to that proposed by Jones and Launder is applied to the calculation of the turbulent natural convective boundary layer on a vertical, isothermal surface. Conservation equations for the turbulent kinetic energy, dissipation rate of turbulent kinetic energy, and mean square temperature fluctuations are solved numerically along with the turbulent momentum and energy equations using the Spalding-Patankar boundary layer method. Various model constants and wall functions, and wall terms were tested. The results are compared with available experimental data and found to be in reasonable agreement.

Copyright © 1977 by ASME
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