The correlated-k approach is compared with the exact line-by-line calculations for thermal radiative transport in highly nonhomogeneous media containing water vapor and carbon dioxide. It is shown that the magnitude of the spectral interval over which k-distribution functions are generated can be increased up to approximately 1000 cm−1 for water vapor and 500 cm−1 for carbon dioxide, with only a slight loss of accuracy. Different solution techniques of the radiative transfer equation in nonhomogeneous media are used and compared. The wide band correlated-k method and a simplified approach to the exponential wide band correlated-k method are shown to provide very good results for the cases considered. The calculations include the entire infrared spectrum of water vapor and carbon dioxide for temperatures up to 2500 K.
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Wide Band Correlated-k Approach to Thermal Radiative Transport in Nonhomogeneous Media
O. Marin,
O. Marin
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 140 Mechanical Engineering Building, MC-244, 1206 West Green Street, Urbana, IL 61801
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R. O. Buckius
R. O. Buckius
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 140 Mechanical Engineering Building, MC-244, 1206 West Green Street, Urbana, IL 61801
e-mail: buckius@ux1.cso.uiuc.edu
Search for other works by this author on:
O. Marin
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 140 Mechanical Engineering Building, MC-244, 1206 West Green Street, Urbana, IL 61801
R. O. Buckius
Department of Mechanical and Industrial Engineering, University of Illinois at Urbana-Champaign, 140 Mechanical Engineering Building, MC-244, 1206 West Green Street, Urbana, IL 61801
e-mail: buckius@ux1.cso.uiuc.edu
J. Heat Transfer. Nov 1997, 119(4): 719-729 (11 pages)
Published Online: November 1, 1997
Article history
Received:
September 3, 1996
Revised:
June 6, 1997
Online:
December 5, 2007
Citation
Marin, O., and Buckius, R. O. (November 1, 1997). "Wide Band Correlated-k Approach to Thermal Radiative Transport in Nonhomogeneous Media." ASME. J. Heat Transfer. November 1997; 119(4): 719–729. https://doi.org/10.1115/1.2824176
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