Canonical straight field line magnetic flux coordinates for tokamaks

JOURNAL OF COMPUTATIONAL PHYSICS

卷:326

Article

Li, Meng¹  Breizman, Boris N.¹  Zheng, Linjin¹ 

[1] Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA

关键词: Tokamaks;    Hamiltonian mechanics;    Particle simulation;    Magnetohydrodynamics stability;    MHD equilibrium;   

DOI  :  10.1016/j.jcp.2016.09.004

来源: Elsevier

【 摘 要 】

New global straight field line coordinates are introduced for a toroidal plasma configuration. The new coordinate system provides a canonical description of particle guiding center motion while maintaining the straight field line feature. These coordinates are convenient for combining MHD calculations with kinetic modeling of energetic particles. We demonstrate how the new coordinate system can be constructed by transforming the poloidal and toroidal angles. Numerical examples show comparison of the new coordinates with various non-canonical coordinates for the same equilibrium configuration. (C) 2016 The Authors. Published by Elsevier Inc.

【 授权许可】

Free