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RESEARCH PAPERS

On Combined Free and Forced Convection in Channels

[+] Author and Article Information
L. N. Tao

Illinois Institute of Technology, Technology Center, Chicago, Ill.

J. Heat Transfer 82(3), 233-238 (Aug 01, 1960) (6 pages) doi:10.1115/1.3679915 History: Received July 30, 1959

Abstract

The heat-transfer problems of combined free and forced convection by a fully developed laminar flow in a vertical channel of constant axial wall temperature gradient with or without heat generations are approached by a new method. By introducing a complex function which is directly related to the velocity and temperature fields, the coupled momentum and energy equations are readily combinable to a Helmholtz wave equation in the complex domain. This greatly reduces the complexities of the problems. For illustrations, the cases of flows between parallel plates and in a rectangular channel are treated. It shows that this method is more direct and powerful than those of previous investigations.

Copyright © 1960 by ASME
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