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- W3100145630 abstract "The discontinuous Galerkin finite element method (DG-FEM) is successfully applied to treat a broad variety of transport problems numerically. In this work, we use the full capacity of the DG-FEM to solve the radiative transfer equation in spherical symmetry. We present a discontinuous Galerkin method to directly solve the spherically symmetric radiative transfer equation as a two-dimensional problem. The transport equation in spherical atmospheres is more complicated than in the plane-parallel case owing to the appearance of an additional derivative with respect to the polar angle. The DG-FEM formalism allows for the exact integration of arbitrarily complex scattering phase functions, independent of the angular mesh resolution. We show that the discontinuous Galerkin method is able to describe accurately the radiative transfer in extended atmospheres and to capture discontinuities or complex scattering behaviour which might be present in the solution of certain radiative transfer tasks and can, therefore, cause severe numerical problems for other radiative transfer solution methods." @default.
- W3100145630 created "2020-11-23" @default.
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- W3100145630 date "2016-11-01" @default.
- W3100145630 modified "2023-10-03" @default.
- W3100145630 title "Discontinuous Galerkin finite element methods for radiative transfer in spherical symmetry" @default.
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- W3100145630 doi "https://doi.org/10.1051/0004-6361/201628578" @default.
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