Linear regularized 13-moment equations with Onsager boundary conditions for general gas molecules

Autor:	Cai, Zhenning, Torrilhon, Manuel, Yang, Siyao
Rok vydání:	2023
Předmět:	Physics - Fluid Dynamics 76P05 82B40 82D05
Druh dokumentu:	Working Paper
Popis:	We develop the steady-state regularized 13-moment equations in the linear regime for rarefied gas dynamics with general collision models. For small Knudsen numbers, the model is accurate up to the super-Burnett order, and the resulting system of moment equations is shown to have a symmetric structure. We also propose Onsager boundary conditions for the moment equations that guarantees the stability of the equations. The validity of our model is verified by benchmark examples for the one-dimensional channel flows. Comment: 34 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2303.07314 Zobrazit plný text záznamu View this record from Arxiv