RESEARCH PAPERS: Radiative Transfer

An Approximate Solution to Radiative Transfer in Two-Dimensional Rectangular Enclosures

[+] Author and Article Information
J. B. Pessoa-Filho, S. T. Thynell

Department of Mechanical Engineering, Penn State University, University Park, PA 16802

J. Heat Transfer 119(4), 738-745 (Nov 01, 1997) (8 pages) doi:10.1115/1.2824178 History: Received February 21, 1997; Revised July 14, 1997; Online December 05, 2007


The application of a new approximate technique for treating radiative transfer in absorbing, emitting, anisotropically scattering media in two-dimensional rectangular enclosures is presented. In its development the discontinuous nature of the radiation intensity, stability of the iterative solution procedure, and selection of quadrature points have been addressed. As a result, false scattering is eliminated. The spatial discretization can be formed without considering the chosen discrete directions, permitting a complete compatibility with the discretization of the conservation equations of mass, momentum, and energy. The effects of anisotropic scattering, wall emission, and gray-diffuse surfaces are considered for comparison with results available in the literature. The computed numerical results are in excellent agreement with those obtained by other numerical approaches.

Copyright © 1997 by The American Society of Mechanical Engineers
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