A Phenomenological Turbulence Model and its Application to Heat Transport in Infinite Rod Arrays With Axial Turbulent Flow

[+] Author and Article Information
H. Ramm, K. Johannsen

Heat Transfer Group, Institut für Kerntechnik, Technische Universität Berlin, Berlin, Germany

J. Heat Transfer 97(2), 231-237 (May 01, 1975) (7 pages) doi:10.1115/1.3450346 History: Received January 15, 1974; Online August 11, 2010


The “turbulence-model” approach has been applied to solve the Reynolds equations of momentum and energy for an incompressible, steady-state, one-directional, hydrodynamically fully developed, turbulent internal flow. To close the turbulence equations, a phenomenological model of turbulent motion and energy transport has been developed which includes anisotropy effects. Predictions made for the turbulent diffusivities of heat in turbulent flow in a plain tube are found to be in good agreement with the experimental data over a wide range of Reynolds and Prandtl numbers. Corresponding results for infinite rod arrays with in-line flow also compare favorably with the few reliable data available.

Copyright © 1975 by ASME
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