Application of statistical narrowband model to three-dimensional absorbing-emitting-scattering media

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TypeArticle
Journal titleJournal of Thermophysics and Heat Transfer
Volume13
Issue3
Pages285291; # of pages: 7
AbstractA novel method for implementing the statistical narrowband model into the radiative transfer equation was devised to perform nongrey radiative transfer calculations in three-dimensional absorbing, emitting, and scattering media. In this new method the radiation intensity is split into two parts: the nonscattered part and the scattered part. The nonscattered part is solved accurately using the statistical narrowband model and a ray-tracing technique and does not require iteration. The scattered part is solved with approximation by using the gray-band model to estimate the band correlation between the scattered intensity and the gas absorption coefficient. The accuracy of this method for narrowband radiation intensity prediction was evaluated in a homogeneous H2O-N2-Al2O3 mixture under both isothermal and nonisothermal conditions by comparing its results with those of the statistical narrowband correlated-K method. This new implementation method alleviates to some extent the difficulty of the band model-scattering incompatibility and offers good results provided the particle loading is not too high.
Publication date
LanguageEnglish
AffiliationNRC Institute for Chemical Process and Environmental Technology; National Research Council Canada (NRC-CNRC)
Peer reviewedNo
NRC number41985
NPARC number8926013
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Record identifierb3fc3f3f-f942-4a97-88ac-bcabb87c458d
Record created2009-04-23
Record modified2016-05-09
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