Turbulent Heat Transfer at Low Reynolds Numbers

[+] Author and Article Information
C. J. Lawn

Heat Transfer Section, Central Electricity Board, Berkeley Nuclear Laboratories, Berkeley, Gloucestershire, England

J. Heat Transfer 91(4), 532-536 (Nov 01, 1969) (5 pages) doi:10.1115/1.3580237 History: Received August 29, 1968; Revised April 04, 1969; Online August 25, 2011


A realistic velocity profile and semiempirical values for the ratio of the eddy diffusivities of momentum and heat are used to solve the heat-balance equation for the situation of fully developed gas flow in a pipe with uniform wall heat flux. The predicted heat transfer is higher than the experimental at Reynolds numbers below 104 and this is shown to be due to the inadequacy of the simple eddy-diffusivity hypothesis.

Copyright © 1969 by ASME
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