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Approximate models for radiative transfer. (English) Zbl 1130.85006

Summary: We give a summary of the partial moment approach for radiative transfer, combined with a minimum entropy closure. This approach is a generalization of the moment approach. We review some well-established models, like the method of spherical harmonics, discrete ordinates, diffusion, higher-order diffusion and flux-limited diffusion. We present numerical examples, where different methods are compared.

MSC:

85A25 Radiative transfer in astronomy and astrophysics
80A20 Heat and mass transfer, heat flow (MSC2010)