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首页> 外文期刊>Physics of plasmas >Global mode analysis of ideal magnetohydrodynamic modes in a heliotron/torsatron system: I. Mercier-unstable equilibria
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Global mode analysis of ideal magnetohydrodynamic modes in a heliotron/torsatron system: I. Mercier-unstable equilibria

机译：日电子/陀螺仪系统中理想磁流体动力学模式的全局模式分析：I. Mercier不稳定平衡

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摘要

By means of a global mode analysis of ideal magnetohydrodynamic (MHD) modes for Mercier-unstable equilibria in a planar axis L = 2/M = 10 heliotron/torsatron system with an inherently large Shafranov shift, the conjecture for global mode in Mercier-unstable equilibria from local mode analysis [N. Nakajima, Phys. Plasmas 3, 4556 (1996)] has been confirmed and the properties of pressure-driven modes inherent to such three-dimensional systems have been clarified. The Mercier-unstable equilibria are categorized into toroidicity-dominant and helicity-dominant Mercier-unstable equilibria. In the toroidicity-dominant Mercier-unstable equilibria, the pressure-driven modes change from interchange modes for low toroidal mode numbers n < M, to tokamak-like ballooning modes for moderate toroidal mode numbers n similar to M, and finally to ballooning modes purely inherent to three-dimensional systems for fairly high toroidal mode numbers n much greater than M. In the helicity-dominant Mercier-unstable equilibria, the pressure-driven modes change from interchange modes for n
机译：通过对具有固有大Shafranov位移的平面轴L = 2 / M = 10的太阳加速器/陀螺仪系统的Mercier不稳定平衡的理想磁流体动力学（MHD）模式进行全局模式分析，Mercier不稳定中的全局模式猜想来自局部模式分析的平衡[N.中岛物理Plasmas 3，4556（1996）]已经被证实，并且这种三维系统固有的压力驱动模式的性质已经被阐明。 Mercier不稳定的平衡可分为环性为主的和Helicity为主的Mercier不稳定的平衡。在以环形为主导的Mercier不稳定平衡中，压力驱动模式从低环形模式数n

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