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Influence of toroidal rotation on tearing modes

Huishan Cai, Jintao Cao, Ding Li2017年被引用 13Nuclear FusionIF 3出版社

The effects of toroidal rotation on tearing modes are studied. It is found that rotation affects the stability of tearing modes mainly through interaction with the resistive inner region of the tearing mode. The coupling of magnetic curvature with the centrifugal and Coriolis forces provides a perturbed perpendicular current, and a return parallel current is induced to affect the stability of tearing modes. Toroidal rotation plays a stable role, which depends on the magnitude of the Mach number and adiabatic index , and is independent of the direction of toroidal rotation. For , the scaling of the growth rate is changed for typical Mach numbers in present tokamaks. For , the scaling remains unchanged, and the effect of toroidal rotation is much less significant compared with that for .

日本語訳

トロイダル回転がテアリングモードに及ぼす影響について研究した。回転は、主にテアリングモードの抵抗性内部領域との相互作用を通じて、その安定性に影響を与えることが見出された。磁気曲率と遠心力およびコリオリ力との結合により、摂動垂直電流が生じ、それに対応する帰還平行電流が誘起されて、テアリングモードの安定性に影響を及ぼす。トロイダル回転は安定化の役割を果たすが、その効果はマッハ数と断熱指数の大きさに依存し、回転方向には依存しない。の場合、現在のトカマクにおける典型的なマッハ数に対して、成長率のスケーリングは変化する。の場合、スケーリングは不変であり、トロイダル回転の効果はの場合に比べてはるかに小さい。

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