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arXiv 2602.23609physics.plasm-ph
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磁几何对离子温度梯度驱动湍流中环形流生成的影响

Impact of geodesic curvature on zonal flow generation in magnetically confined plasmas

National Institute for Fusion Science(国立核聚变科学研究所);The Graduate University for Advanced Studies(高级研究大学院大学);PRESTO, Japan Science and Technology Agency(日本科学技术振兴机构 PRESTO 项目);Faculty of Arts and Sciences, Komazawa University(驹泽大学文理学部)

Motoki Nakata, Seikichi Matsuoka

AI总结:

研究通过模拟探讨磁几何对离子温度梯度驱动湍流中环形流生成的影响,并提出非线性代理模型以探索新型磁几何结构。

摘要:

通过线性和非线性回旋动力学模拟,研究了磁几何对离子温度梯度驱动湍流中环形流生成的影响。通过调节不同配置的测地曲率,发现相对较小的测地曲率会增强环形流强度。基于这些发现,提出了一种非线性代理模型,用于探索新型磁几何结构以激活环形流动力学。

英文摘要:

The impact of magnetic geometry on zonal-flow generation in ion temperature gradient driven turbulence is investigated by means of linear and nonlinear gyrokinetic simulations. The modulation of geodesic curvature on various configurations has revealed amplification of the zonal-flow intensity in relatively smaller geodesic curvature. Based on these findings, a nonlinear proxy model for explorations of a novel magnetic geometry to activate the zonal-flow dynamics is proposed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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