Alfven instabilities driven by circulating ions in optimized stellarators and their possible consequences in a Helias reactor
Alfven instabilities driven by circulating ions in optimized stellarators and their possible consequences in a Helias reactor
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优化仿星器中循环离子驱动的阿尔文不稳定性及其在 Helias 反应堆中可能产生的后果
DOI：
10.1063/1.1432993
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发表时间：
2002
影响因子：
2.2
通讯作者：
V. Yakovenko
中科院分区：
文献类型：
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作者：
Y. Kolesnichenko;V. Lutsenko;H. Wobig;V. Yakovenko
这项工作研究了温德尔斯坦线优化仿星器中循环粒子引起的阿尔文不稳定性 [F.瓦格纳，译。融合技术。 33, 67 (1998)]。获得并分析了不稳定性增长率的一般表达式。结果表明，轴对称性的缺失使得各种类型的阿尔文本征模态可能会失稳；不稳定的阿尔文本征模式的类型和驱动不稳定性的共振类型可能与托卡马克中的不同。特别是，预测了螺旋引起的共振的重要作用。发现的新共振可能会大大增加“间隙”模式和位于圆柱阿尔文连续体下方的本征模式的不稳定性增长率。四周期 Helias 反应堆中各种阿尔文不稳定性引起的循环 α 粒子局部能量损失的上限 [C. D. Beidler 等人，在 2000 年第 18 届国际原子能机构会议聚变能源中...
This work investigates circulating-particle-induced Alfven instabilities in optimized stellarators of the Wendelstein line [F. Wagner, Trans. Fusion Tech. 33, 67 (1998)]. A general expression for the growth rate of the instabilities is obtained and analyzed. It is shown that the absence of the axial symmetry makes it possible that various types of Alfven eigenmodes will be destabilized; both the kind of destabilized Alfven eigenmodes and the type of the resonances driving the instability may differ from those in tokamaks. In particular, an important role of the helicity-induced resonance is predicted. The discovered new resonances may considerably increase the instability growth rate of both the “gap” modes and the eigenmodes residing below cylindrical Alfven continuum. The upper limits of the local energy losses of circulating α-particles caused by various Alfven instabilities in a four-period Helias reactor [C. D. Beidler et al., in Fusion Energy 2000, 18th International Atomic Energy Agency Conference ...
Schwab,C：“理想磁流体动力学：三维等离子体构型的全局模式分析”流体物理学 B 5. 5(9)。
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