An asymptotic preserving method for the linear transport equation on general meshes
نویسندگان
چکیده
While many numerical methods for the linear transport equation are available in literature 1D or on Cartesian meshes, fewer works dedicated to resolution of this model unstructured meshes. In context radiative hydrodynamics, we need a method capable handle wide range radiation regimes going from free-streaming diffusion and be coupled with Lagrangian hydrodynamics solver. paper design based micro-macro paradigm Discrete Ordinates (SN) angular discretization, which fulfills these requirements. It allows choose limit scheme scheme. is compared challenging test problems Discontinuous Finite Element (DFE) method.
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ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2022
ISSN: ['1090-2716', '0021-9991']
DOI: https://doi.org/10.1016/j.jcp.2021.110859