A Correlation for the Reordered Wave Number of the Wide-Band Absorptance of Radiating Gases

A function is introduced that closely approximates the four-region function for the wide-band absorptance commonly used with Edward's wide-band parameters. The function has a reordered wave number that is in closed form. The function allows the commonly recommended wide-band parameters to be us...

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Bibliographic Details
Published in:Journal of heat transfer 1997-11, Vol.119 (4), p.853-856
Main Authors: Denison, M. K, Fiveland, W. A
Format: Article
Language:English
Subjects:
Approximation theory
Carbon dioxide
Correlation methods
Exact sciences and technology
Gas absorption
Laplace transforms
Mathematical models
Optical and dielectric properties
Optimization
Physics
Physics of gases
Physics of gases, plasmas and electric discharges
Water
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Summary:A function is introduced that closely approximates the four-region function for the wide-band absorptance commonly used with Edward's wide-band parameters. The function has a reordered wave number that is in closed form. The function allows the commonly recommended wide-band parameters to be used without any corrections. The form of the function can also be used to obtain a fit to other functions representing the band absorptance.
ISSN:0022-1481
1528-8943
DOI:10.1115/1.2824195