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Nonlinear simulation of tearing mode based on 4-field RMHD model

M. Yagi, S. Yoshida, S.-I. Itoh, H. Naitou, H. Nagahara, J.-N. Leboeuf, K. Itoh, T. Matsumoto, S. Tokuda, M. Azumi2005年被引用 31Nuclear FusionIF 3出版社

Simulations of dynamics of tearing modes based on a 4-field reduced magneto hydro dynamics model are performed, laying an emphasis on interaction with microscopic and transport processes. The simulation results show the importance of turbulent fluctuations for the onset of tearing mode. The helical current perturbation associated with a magnetic island is studied. The perturbed bootstrap current has a structure in the magnetic island (including a phase difference), indicating the need to improve assumptions in the theory of neoclassical tearing mode.

日本語訳

4場簡約磁気流体力学モデルに基づくテアリングモードのダイナミクスのシミュレーションを、微視的過程および輸送過程との相互作用に重点を置いて実施した。シミュレーション結果は、テアリングモードの発生に対する乱流揺動の重要性を示している。磁気島に関連する螺旋電流摂動を研究した。摂動されたブートストラップ電流は磁気島内で構造(位相差を含む)を有しており、新古典テアリングモードの理論を改善する必要性を示している。

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Tearing mode
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