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open-access-imgOpen AccessA comparison of two statistical narrow band models for non-gray gas radiation in planar plates
Author(s)
Huaqiang Chu,
Fei Ren,
Yan Wei
Publication year2018
Publication title
thermal science
Resource typeJournals
PublisherVinča Institute of Nuclear Sciences
Non-gray gas radiation analysis and comparison are conducted by combining a ray tracing method and two statistical narrow band (SNB) spectral models, namely the Goody SNB model and the Malkmus SNB model. In this paper, gas radiation in real gas containing H2O, H2O / N2, or H2O / CO2 / N2 mixtures at 1 atm in planar plates was studied. Comparisons between these models are performed using the latest narrow-band database. The present computations are validated by reproduc- ing the published results in the literature. The radiative source term, the wall fluxes, the narrow-band radiation intensities along a line-of-sight and the computing time are all compared. From the comparisons, it is found that the Malkmus SNB model is somewhat superior to the Goody SNB model and the former is preferred in engineering application.
Subject(s)algorithm , astrophysics , computation , computational physics , computer graphics (images) , computer science , gray (unit) , line of sight , mathematics , medicine , operating system , optics , physics , planar , radiation , radiative transfer , radiology , statistical model , statistical physics , statistics , tracing
Language(s)English
SCImago Journal Rank0.339
H-Index43
ISSN0354-9836
DOI10.2298/tsci171214063c

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