Second-order mixed-moment model with differentiable ansatz function in slab geometry
Numerical Analysis
2017-09-27 v1
Abstract
We study differentiable mixed-moment models (full zeroth and first moment, half higher moments) for a Fokker-Planck equation in one space dimension. Mixed-moment minimum-entropy models are known to overcome the zero net-flux problem of full-moment minimum entropy models. Realizability theory for these modification of mixed moments is derived for second order. Numerical tests are performed with a kinetic first-order finite volume scheme and compared with , classical and a reference scheme.
Cite
@article{arxiv.1709.09032,
title = {Second-order mixed-moment model with differentiable ansatz function in slab geometry},
author = {Florian Schneider},
journal= {arXiv preprint arXiv:1709.09032},
year = {2017}
}
Comments
arXiv admin note: text overlap with arXiv:1611.01314, arXiv:1511.02714