Modeling radiative transfer in real gases: An assessment of existing methods in 2D enclosures
In order to model efficiently the radiative transfer in a real participating gas, various methods have been developed during the last few decades. Each method has its own formulation and leads to different accuracies and computation times. Most of the studies reported in the literature concern specific real gas models, and very few are devoted to an extended comparison of these models. The present study is a 2D assessment of some of the most up-to-date real gas methods: the cumulative-k method (CK), the statistical narrow-band model (SNB), two hybrid SNB-CK methods, the spectral line based weighted sum of gray gases method (SLW) and the exponential wide band model (EWB). Four cases are considered: one homogeneous and isothermal case with a single participating gas (H{sub 2}O), and one homogeneous and non-isothermal case with a mixture of CO{sub 2} and H{sub 2}O. Although the SNB and SNB-CK methods are the most accurate methods, the SLW method seems actually the best deal between accuracy and computation time.
- Research Organization:
- Univ. du Quebec, Chicoutimi, Quebec (CA)
- OSTI ID:
- 20002665
- Report Number(s):
- CONF-990805-; TRN: IM200002%%665
- Resource Relation:
- Conference: 33rd National Heat Transfer Conference NHTC'99, Albuquerque, NM (US), 08/15/1999--08/17/1999; Other Information: PBD: 1999; Related Information: In: Proceedings of the 33rd national heat transfer conference NHTC'99, by Jensen, M.K.; Di Marzo, M. [eds.], [1150] pages.
- Country of Publication:
- United States
- Language:
- English
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