Numerical Treatment of Radiative Transfer

Details Numerical Treatment of Radiative Transfer Numerical Treatment of Radiative Transfer

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.298..357g&link_type=abstract

Astrophysics and Space Science, Volume 298, Issue 1-2, pp. 357-362

Astronomy and Astrophysics

Astrophysics

4

Radiative Transfer, Diffusion Limit, Transport, Hyperbolic System, Godunov-Type Methods

Scientific paper

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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