A multigrid AMR algorithm for the study of magnetic reconnection

JOURNAL OF COMPUTATIONAL PHYSICS

卷:351

Article

Del Sarto, D.^1,2  Deriaz, E.^1,3 

[1] Inst Jean Lamour, CNRS UMR 7198, Nancy, France

[2] Univ Lorraine, Nancy, France

[3] CNRS, Paris, France

关键词: Reduced magnetohydrodynamic;    Adaptive mesh refinement;    Magnetic reconnection;    Multigrid;    CFL stability;   

DOI  :  10.1016/j.jcp.2017.08.046

来源: Elsevier

【 摘 要 】

We address the study of reconnecting instabilities in magnetized plasmas, a highly multiscale process, using an innovative adaptive scheme based on Adaptive Mesh Refinement (AMR) and Multigrid Algorithms. The reduced model we exploit is very sensitive to numerical errors and demands high order solvers which we develop for this purpose. We validate our approach with two numerical experiments of physical interest. (C) 2017 Elsevier Inc. All rights reserved.

【 授权许可】

Free