Thermal Radiation Effects on the Laminar Free Convection Boundary Layer of an Absorbing Gas

[+] Author and Article Information
W. G. England

Systems, Science and Software, San Diego, Calif.

A. F. Emery

Department of Mechanical Engineering, University of Washington, Seattle, Wash.

J. Heat Transfer 91(1), 37-44 (Feb 01, 1969) (8 pages) doi:10.1115/1.3580116 History: Received August 04, 1967; Revised May 10, 1968; Online August 25, 2011


The effects of thermal radiation upon the laminar free convection boundary layer of a vertical flat plate were studied for absorbing and nonabsorbing gases. Experimental velocity and temperature profiles were obtained for a constant heat flux boundary condition in air and CO2 and these are compared to analytical calculations for optically thin gases and absorbing gray gases. A correlation is presented by which plate surface temperatures as a function of plate emissivity for optically thin gases may be predicted for use in determining the convective heat transfer through standard non-radiative film heat transfer correlations.

Copyright © 1969 by ASME
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