Application of narrow and wide band models for radiative transfer in planar media

A ray tracing formulation is described for the solution of the radiative he at transfer equation in absorbing, emitting and non-scattering real gases. The Goody and the Malkmus statistical narrow band models and the Edwards wi de band model are used for calculating the radiative dissipation and the wa ll fluxes in a series of planar configurations containing inhomogeneous, no n-isothermal H2O/N-2 mixtures bounded by non-reflecting walls. Comparisons between these models are performed and their sensitivity on the sets of the band parameters is investigated. The accuracy of the results obtained by c onsidering correlated and non-correlated solutions is also discussed. (C) 2 000 Elsevier Science Ltd. All rights reserved.