Spectral line-based weighted-sum-of-gray-gases model in nonisothermal nonhomogeneous media
- Brigham Young Univ., Provo, UT (United States)
An approach is developed to extend the previously developed spectral-line weighted-sum-of-gray-gases (SLW) model to nonisothermal, nonhomogeneous media. The distinguishing feature of the SLW gas property model is that it has been developed for use in arbitrary solution methods of the radiative transfer equation (RTE). A spatial dependence of the gray gas absorption cross sections on local temperature, pressure, and mole fraction is introduced through the absorption-line blackbody distribution function. Incorporating this spatial dependence results in significant improvement over the use of spatially uniform gray gas absorption cross sections in comparisons with line-by-line benchmarks. 16 refs., 7 figs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 68012
- Journal Information:
- Journal of Heat Transfer, Journal Name: Journal of Heat Transfer Journal Issue: 2 Vol. 117; ISSN JHTRAO; ISSN 0022-1481
- Country of Publication:
- United States
- Language:
- English
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