A 3-D radiation model for non-grey gases

Date

2009-02-01

Author

Selçuk, Nevin

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A three-dimensional radiation code based on method of lines (MOL) solution of discrete ordinates method (DOM) coupled with spectral line-based weighted sum of grey gases (SLW) model for radiative heat transfer in non-grey absorbing-emitting media for use in conjunction with a computational fluid dynamics (CFD) code based on the same approach was developed. The code was applied to three test problems: two containing isothermal homogenous/non-homogenous water vapor and one non-isothermal water vapor/carbon dioxide mixture. Predictive accuracy of the code was evaluated by benchmarking its steady-state predictions against accurate results, calculated by ray tracing method with statistical narrow band model, available in the literature. Comparative testing with solutions of other methods is also provided. Comparisons reveal that MOL solution of DOM with SLW model provides accurate solutions for radiative heat fluxes and source terms and can be used with confidence in conjunction with CFD codes based on MOL.

Subject Keywords

Three-dimensional radiation, Non-grey gases, Method of lines, Spectral line-based weighted sum of grey gases

URI

https://hdl.handle.net/11511/30167

Journal

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER

DOI

https://doi.org/10.1016/j.jqsrt.2008.09.016

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

N. Selçuk, “A 3-D radiation model for non-grey gases,” JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, pp. 184–191, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30167.