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RESEARCH PAPERS

Diffusion Approximation for Thermal Radiation in Gases With Jump Boundary Condition

[+] Author and Article Information
R. G. Deissler

Lewis Research Center, National Aeronautics and Space Administration, Cleveland, Ohio

J. Heat Transfer 86(2), 240-245 (May 01, 1964) (6 pages) doi:10.1115/1.3687110 History: Received April 23, 1963

Abstract

Generalized equations are obtained for radiative diffusion in a nongray gas and for the energy jump at a wall. By using the second-order energy jump at a wall, the diffusion approximation for radiation in a gas is improved considerably, the range of validity of the approximation being extended to lower values of optical thickness.

Copyright © 1964 by ASME
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