Comparison of the discrete transfer and Monte Carlo methods for radiative heat transfer in three-dimensional, nonhomogeneous participating media
- Loughborough Univ. (United Kingdom). Dept. of Mechanical Engineering
Several problems are studied with both the discrete transfer and Monte Carlo methods for predicting radiative heat transfer in three-dimensional, nonhomogeneous, participating media. Previous studies have verified the discrete transfer method only in two-dimensional, isotropically scattering media. This paper therefore demonstrates its applicability to scattering problems in three-dimensional geometries, with comparisons against solutions by a pathlength-based Monte Carlo method. In this respect, formulations for both methods are presented with suitable modifications and extensions to their traditional approach. Both algorithms are found to provide numerical solutions in good agreement with published benchmark results which used the YIX, Monte Carlo and finite element methods to determine the radiative transport in a unit cube. New solutions in an arbitrary L-shaped geometry with a body-fitted mesh are presented. The average deviation between the two methods is less than 1.2% for both the boundary surface flux and the divergence of radiative flux or gas emissive power within the enclosed media.
- OSTI ID:
- 395259
- Report Number(s):
- CONF-960815--; ISBN 0-7918-1507-2
- Country of Publication:
- United States
- Language:
- English
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