Abstract
We derive a second-order realizability-preserving scheme for moment models for linear kinetic equations. We apply this scheme to the first-order continuous (HFMn) and discontinuous (PMMn) models in slab and three-dimensional geometry derived in [55] as well as the classical full-moment MN models. We provide extensive numerical analysis as well as our code to show that the new class of models can compete or even outperform the full-moment models in reasonable test cases.
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