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Non-axisymmetric equilibrium and stability using the ELITE stability code

M.S. Anastopoulos-Tzanis, B.D. Dudson, C.J. Ham, C.C. Hegna, P.B. Snyder, H.R. Wilson2019年被引用 1Nuclear FusionIF 3出版社

Linear perturbation theory is used to model the ideal magnetohydrodynamic stability of tokamak equilibria under the application of external 3D magnetic perturbations (Hegna 2014 Phys. Plasmas21 072502). We use the ELITE code (Wilson et al 2002 Phys. Plasmas9 1277) to produce both a linear plasma response, as well as the linear axisymmetric toroidal eigenmodes which are used as basis functions for the 3D perturbative stability analysis. The symmetry breaking produces coupling of modes with different toroidal mode number, n, leading to modification of the linear growth rates, and poloidal localisation of the non-axisymmetric peeling–ballooning mode at sufficiently large applied field.

日本語訳

線形摂動理論を用いて、外部3D磁気摂動の印加下におけるトカマク平衡の理想磁気流体力学安定性をモデル化する(Hegna 2014 Phys. Plasmas21 072502)。我々はELITEコード(Wilson et al 2002 Phys. Plasmas9 1277)を用いて、線形プラズマ応答と、3D摂動安定性解析の基底関数として使用される線形軸対称トロイダル固有モードの両方を生成する。対称性の破れは、異なるトロイダルモード数nを持つモードの結合を生じさせ、十分に大きな印加磁場において、線形成長率の修正と非軸対称ピーリング・バルーニングモードのポロイダル局在化をもたらす。

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