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Critical velocity shear flow for triggering L-H transition and its parametric dependence in the HL-2A tokamak

A.S. Liang, X.L. Zou, W.L. Zhong, A. Ekedahl, X.R. Duan, Z.B. Shi, D.L. Yu, Z.C. Yang, J. Wen, G.L. Xiao2020年被引用 9Nuclear FusionIF 3出版社

The dynamics of shear flows and turbulence in the pedestal region during the L-H transition have been studied in the HL-2A tokamak. It has been shown that ion diamagnetic shear flow plays a key role in triggering the L-H transition. A critical velocity shear has been found for the L-H transition. Statistical results indicate that the velocity shear threshold is independent of the plasma density and the total heating power.

日本語訳

HL-2Aトカマクにおいて、L-H遷移中のペデスタル領域におけるせん断流と乱流のダイナミクスが研究された。イオン反磁性せん断流がL-H遷移のトリガーに重要な役割を果たすことが示された。L-H遷移には臨界速度シアが存在することが見出された。統計的結果は、速度シアの閾値がプラズマ密度および総加熱パワーに依存しないことを示している。

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HL-2AL-H transitionVelocity shear
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