Modified Discrete Ordinates Solution of Radiative Transfer in Two-Dimensional Rectangular Enclosures
Abstract
A modified discrete ordinates solution is developed for radiative transfer in a two-dimensional rectangular enclosure which contains an absorbing, emitting and isotropically scattering medium. Uniform and non-uniform diffuse loadings on the top boundary are considered. The intensity is broken into direct and diffuse components. The direct component is determined analytically, and the diffuse transport equation is solved numerically by conventional discrete ordinates procedure. Results are presented for various aspect ratios, media extinction properties, and loading parameters. The standard discrete ordinates solution exhibits anomalies in the flux leaving the bottom which are attributed to “ray-effects”. Large errors are observed when the aspect ralio is small. Numerical results obtained using the modified discrete ordinates scheme compare well with benchmark solutions and show no anomalies in the bottom flux. Copyright © 1997 Elsevier Science Ltd.
Recommended Citation
M. A. Ramankutty and A. L. Crosbie, "Modified Discrete Ordinates Solution of Radiative Transfer in Two-Dimensional Rectangular Enclosures," Journal of Quantitative Spectroscopy and Radiative Transfer, Elsevier, Jan 1997.
The definitive version is available at https://doi.org/10.1016/S0022-4073(96)00090-8
Department(s)
Mechanical and Aerospace Engineering
International Standard Serial Number (ISSN)
0022-4073
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1997 Elsevier, All rights reserved.
Publication Date
01 Jan 1997
