低长径比下超环面对弛豫态的影响
The effect of toroidicity on relaxed states at low aspect ratio
摘要：
实验测得的单螺旋状态的低纵横比（R/a=2）RELAX设备已被比较与预测的圆柱形松弛理论和一个实质性的偏差，在某些宏观特性方面已被发现，特别是对于对应于一个大的反转的边缘环向场的情况下。在本文中，我们考虑采用VMEC和RelaxFit平衡代码的环形几何形状的效果。我们表明，包括toroidicity产生显着的修正柱状态，特别是对深反转的情况下。
英文摘要：
The experimentally measured single helical states in the low aspect ratio (R/a=2) RELAX device have been compared with the predictions of a cylindrical relaxation theory and a substantial deviation in terms of some macroscopic characteristics has been found, in particular for cases corresponding to a large reversal of the edge toroidal field. In this paper we consider the effect of the toroidal geometry by employing the VMEC and the RelaxFit equilibrium codes. We show that the inclusion of toroidicity produces significant corrections to the cylindrical states, especially for the deep reversed cases.
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