Arbitrarily high-order energy-preserving methods for simulating the gyrocenter dynamics of charged particles

JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS

卷:380

Article

Brugnano, Luigi¹  Iavernaro, Felice²  Zhang, Ruili³ 

[1] Univ Firenze, Dipartimento Matemat & Informat U Dini, I-50134 Florence, Italy

[2] Univ Bari, Dipartimento Matemat, I-70125 Bari, Italy

[3] Beijing Jiaotong Univ, Sch Sci, Beijing 100044, Peoples R China

关键词: Gyrocenter dynamics;    Energy-conserving methods;    Poisson problems;    Line integral methods;    Hamiltonian Boundary Value Methods;    HBVMs;   

DOI  :  10.1016/j.cam.2020.112994

来源: Elsevier

【 摘 要 】

Gyrocenter dynamics of charged particles plays a fundamental role in plasma physics. In particular, accuracy and conservation of energy are important features for correctly performing long-time simulations. For this purpose, we here propose arbitrarily high-order energy conserving methods for its simulation. The analysis and the efficient implementation of the methods are fully described, and some numerical tests are reported. (C) 2020 Elsevier B.V. All rights reserved.

【 授权许可】

Free