✦ LIBER ✦

Simplified PN Approximations to the Equations of Radiative Heat Transfer and Applications

✍ Scribed by Edward W. Larsen; Guido Thömmes; Axel Klar; Mohammed Seaı̈d; Thomas Götz

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 253 KB
Volume: 183
Category: Article
ISSN: 0021-9991
DOI: 10.1006/jcph.2002.7210

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✦ Synopsis

Simplified P N (SP N ) approximations to the equations of radiative heat transfer are derived for optically thick, diffusive systems, and appropriate boundary conditions are formulated. The SP N equations are derived by an asymptotic analysis, while the boundary conditions are obtained from a variational analysis. Numerical comparisons of the SP N , equilibrium diffusion, and full transport equations are presented to demonstrate the accuracy and efficiency of the SP N approximations.

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