Implicit-explicit, realizability-preserving first-order scheme for moment models with Lipschitz-continuous source terms
Numerical Analysis
2016-11-07 v1
Abstract
We derive an implicit-explicit (IMEX), realizability-preserving first-order scheme for moment models with Lipschitz-continuous source terms. In contrast to fully-explicit schemes the time step does not depend on the physical parameters, removing the stiffness from the system. Furthermore, a wider class of collision operators (e.g. the Laplace-Beltrami operator) can be used. The derived scheme is applied to minimum-entropy models.
Keywords
Cite
@article{arxiv.1611.01314,
title = {Implicit-explicit, realizability-preserving first-order scheme for moment models with Lipschitz-continuous source terms},
author = {Florian Schneider},
journal= {arXiv preprint arXiv:1611.01314},
year = {2016}
}