Wave intensity fluctuations in a one-dimensional randomly inhomogeneous medium. V. Numerical integration of the radiative transfer equations

1981 ◽  
Vol 24 (8) ◽  
pp. 649-655 ◽  
Author(s):  
G. I. Babkin ◽  
V. I. Klyatskin ◽  
V. F. Kozlov ◽  
E. V. Yaroshchuk
Keyword(s):  
Radiative Transfer ◽  
Numerical Integration ◽  
Inhomogeneous Medium ◽  
Wave Intensity ◽  
One Dimensional ◽  
Transfer Equations ◽  
Intensity Fluctuations ◽  
Radiative Transfer Equations

scholarly journals The Full-Spectrum Correlated-K Distribution and Its Relationship to the Weighted-Sum-of-Gray-Gases Method

2000 ◽  
Author(s):  
Michael F. Modest ◽  
Hongmei Zhang
Keyword(s):  
Radiative Transfer ◽  
Solution Method ◽  
Distribution Model ◽  
Weighted Sum ◽  
Full Spectrum ◽  
One Dimensional ◽  
Molecular Gases ◽  
Transfer Equations ◽  
Gray Medium ◽  
Radiative Transfer Equations

Abstract A new Full-Spectrum correlated-k distribution has been developed, which provides an efficient means for accurate radiative transfer calculations in absorbing/emitting molecular gases. The Full-Spectrum correlated-k distribution can be used together with any desired solution method to solve gray-medium radiative transfer equations for a small number of gray absorption coefficients, followed by numerical quadrature. It is shown that the Weighted-Sum-of-Gray-Gases model is effectively only a crude implementation of the Full-Spectrum correlated-k distribution approach. Within the limits of the Full-Spectrum correlated-k distribution model (i.e., an absorption coefficient obeying the so-called “scaling approximation”), the method is exact. This is demonstrated by comparison with line-by-line calculations for a one-dimensional CO2-N2 gas mixture with varying temperature and concentration fields.

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