Jing Wu, Shuo Wang, Xue-Feng Chen, Guang-Zhou Hao, Lei Xue, Yue-bin Liang, Peng Lu, Lie-Ming Yao
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引用次数: 0
Abstract
The Resistive Wall Mode (RWM) is frequently linked to external kink (XK) instability, which arises from high-pressure gradients in fusion devices. This study emphasises the critical importance of adjusting the phase of Resonant Magnetic Perturbation (RMP) coils to suppress the RWM instability, while considering factors such as plasma elongation and triangularity. Using the MARS-F code [Liu et al. 2000, Phys. Plasmas 7, 3681], we investigated how phase modulation of RMP coils affects the growth rates of RWM across various plasma profiles and thin-wall conditions. Our results demonstrate the effectiveness of phase modulation of RMP coils across different configurations, including elongation, triangularity, and normalised beta. Additionally, we found that toroidal rotation is crucial in suppressing RWM growth rates. These findings provide valuable insights for designing advanced high-confinement scenarios during tokamak operations.
电阻壁模式（RWM）经常与外部扭结（XK）不稳定性联系在一起，这种不稳定性是由聚变装置中的高压梯度引起的。本研究强调了在考虑等离子体伸长和三角形等因素的同时，调整谐振磁摄动（RMP）线圈相位以抑制RWM不稳定性的重要性。利用MARS-F编码[Liu et al. 2000，物理学报。等离子体[7,3681]，我们研究了RMP线圈的相位调制如何影响各种等离子体剖面和薄壁条件下RWM的增长率。我们的结果证明了不同配置的RMP线圈相位调制的有效性，包括伸长率、三角形和归一化β。此外，我们发现环向旋转对抑制RWM生长速率至关重要。这些发现为在托卡马克操作过程中设计先进的高约束场景提供了有价值的见解。
期刊介绍：
The Journal of Fusion Energy features original research contributions and review papers examining and the development and enhancing the knowledge base of thermonuclear fusion as a potential power source. It is designed to serve as a journal of record for the publication of original research results in fundamental and applied physics, applied science and technological development. The journal publishes qualified papers based on peer reviews.
This journal also provides a forum for discussing broader policies and strategies that have played, and will continue to play, a crucial role in fusion programs. In keeping with this theme, readers will find articles covering an array of important matters concerning strategy and program direction.
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