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Validity of ballooning representation and mode number dependence of stability

R.J. Hastie, J.B. Taylor1981年被引用 26Nuclear FusionIF 3出版社

It is pointed out that the range of mode numbers n for which high-n, ballooning-mode theory is valid is more restricted when the shear is weak. A new theory valid for weak shear and intermediate mode number is outlined. Combined with the standard theory, this analysis shows that the growth rate of high-n instabilities is linear in 1/n at large n but in equilibria with weak shear there may be intermediate values of n for which the growth rate is an oscillatory function of 1/n, with amplitude and period proportional to 1/n2.

日本語訳

弱いシアーの場合、高nバルーニングモード理論が有効であるモード数nの範囲がより制限されることが指摘される。弱いシアーと中間モード数に対して有効な新しい理論が概説される。標準理論と組み合わせると、この解析は、高n不安定性の成長率が大きなnでは1/nに線形であるが、弱いシアーを持つ平衡状態では、成長率が1/nの振動関数となる中間のnの値が存在し、その振幅と周期は1/n2に比例することを示す。

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Ballooning mode
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