A numerical study of the high‐n shear Alfvén spectrum gap and the high‐n gap mode
A numerical study of the high‐n shear Alfvén spectrum gap and the high‐n gap mode
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DOI：
10.1063/1.860327
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发表时间：
1992-11
期刊：
影响因子：
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通讯作者：
M. Chu;J. M. Greene;L. Lao;A. Turnbull;M. Chance
中科院分区：
文献类型：
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作者：
M. Chu;J. M. Greene;L. Lao;A. Turnbull;M. Chance
托卡马克中剪切阿尔芬波谱的环向诱导间隙满足包络方程。这些间隙的结构，和高n间隙模式的位置，这是本地化模式与频率的差距，一般数值生成的平衡进行了研究。探讨了间隙和差距模式的频率对等离子体的平衡性质，如伸长，三角形，和β的依赖关系。
The toroidicity‐induced gaps of the shear Alfven wave spectrum in tokamaks are shown to satisfy an envelope equation. The structure of these gaps, and the location of the high‐n gap modes, which are localized modes with frequency in the gap, are studied for general numerically generated equilibria. The dependence of the frequencies of the gaps and the gap modes on the equilibrium properties, such as elongation, triangularity, and β of the plasma are explored.