A short note on reconstruction variables in shock capturing schemes for magnetohydrodynamics

JOURNAL OF COMPUTATIONAL PHYSICS

卷:423

Article

Miyoshi, Takahiro¹  Minoshima, Takashi² 

[1] Hiroshima Univ, Grad Sch Adv Sci & Engn, Higashihiroshima 7398526, Japan

[2] Japan Agcy Marine Earth Sci & Technol, Ctr Math Sci & Adv Technol, Yokohama, Kanagawa 2360001, Japan

关键词: Magnetohydrodynamics;    Shock capturing scheme;    Reconstruction;   

DOI  :  10.1016/j.jcp.2020.109804

来源: Elsevier

【 摘 要 】

We propose a set of quick and easy approximate characteristic variables for higher-order reconstructions of shock capturing schemes for magnetohydrodynamics (MHD). Numerical experiments suggest that the reconstructions using the approximate characteristic variables are more robust than those using the conservative or primitive variables, while their computational efficiencies are comparable. The approximate characteristic variables are simple compared to the full characteristic variables for MHD, and can be a practical choice of reconstruction variables. (C) 2020 Elsevier Inc. All rights reserved.

【 授权许可】

Free