Numerical Treatment of Radiative Transfer |
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| Authors: | Matthias González Edouard Audit |
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| Institution: | (1) CEA-Saclay, DSM/DAPNIA/Service d’Astrophysique, F91191 Gif-sur-Yvette Cedex, France |
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| Abstract: | We present a numerical treatment of radiative transfer in three dimensions. The radiation is modeled by the grey moment M
1 system. The introduced scheme is able to compute accurate numerical solutions over a broad class of regimes from the transport
to the diffusive limit. We discuss numerical issues concerning the resolution and the parallelization of this scheme for multi-dimensional
simulations. Several numerical results are then presented, which show that this approach is robust and have the correct behavior
in both the diffusive and free-streaming limits. We also present a comparison in two dimensions of our code with a Monte-Carlo
transfer code. |
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| Keywords: | radiative transfer diffusion limit transport hyperbolic system Godunov-type methods |
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