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Comparison of tokamak axisymmetric mode growth rates from linear MHD and equilibrium evolution approaches

S.A. Galkin, A.A. Ivanov, S.Yu. Medvedev, Yu.Yu. Poshekhonov1997年被引用 22Nuclear FusionIF 3出版社

Linear magnetohydrodynamic (MHD) and equilibrium evolution approaches describe the linear and non-linear axisymmetric displacement dynamics of free boundary plasma equilibrium configurations surrounded by conductors in an external magnetic field. A comparison of the two different approaches was made using DIII-D-like free boundary equilibria. Good agreement was found for up-down symmetric configurations. However, a considerable difference in growth rates is found for up-down asymmetric equilibria. The difference can be explained by taking into account surface current perturbations in the MHD model. Common and specific features of the two approaches are discussed

日本語訳

線形磁気流体力学(MHD)および平衡発展アプローチは、外部磁場中で導体に囲まれた自由境界プラズマ平衡配置の線形および非線形軸対称変位ダイナミクスを記述する。この2つの異なるアプローチの比較は、DIII-D類似の自由境界平衡を用いて行われた。上下対称な配置では良好な一致が見られた。しかし、上下非対称な平衡では成長率にかなりの差異が見られる。この差異は、MHDモデルにおいて表面電流摂動を考慮することで説明できる。2つのアプローチの共通点と特徴について議論する。

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diii-d中精度(概要文一致)

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Magnetohydrodynamics
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