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RESEARCH PAPERS

Surface Radiation Exchange for Two-Dimensional Rectangular Enclosures Using the Discrete-Ordinates Method

[+] Author and Article Information
A. Sànchez, T. F. Smith

Department of Mechanical Engineering, The University of Iowa, Iowa City, IA 52242

J. Heat Transfer 114(2), 465-472 (May 01, 1992) (8 pages) doi:10.1115/1.2911296 History: Received April 10, 1991; Revised September 11, 1991; Online May 23, 2008

Abstract

The purpose of this study is to develop a model based on the discrete-ordinates method for computing radiant exchange between surfaces separated by a transparent medium and to formulate the model so that arbitrary arrangements of the surfaces can be accommodated. Heat fluxes from the model are compared to those based on the radiosity/irradiation analysis. Three test geometries that include shadowing and irregular geometries are used to validate the model. Heat fluxes from the model are in good agreement with those from the radiosity/irradiation analysis. Effects of geometries, surface emittances, grid patterns, finite-difference weighting factor, and number of discrete angles are reported.

Copyright © 1992 by The American Society of Mechanical Engineers
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