Two-dimensional numerical equilibria of field-reversed configuration in the strong mirror field
Two-dimensional numerical equilibria of field-reversed configuration in the strong mirror field
复制标题
强镜场中场反转构型的二维数值平衡
DOI：
10.1063/1.1289513
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发表时间：
2000
影响因子：
2.2
通讯作者：
S. Gotô
中科院分区：
文献类型：
--
作者：
Y. Suzuki;S. Okada;S. Gotô
利用Grad-Shafranov方程研究了强镜场作用下场反转组态等离子体的二维数值平衡。压力函数的适当选择对于获得薄且细长的平衡是必要的，如在FRC注射实验（FIX）中观察到的[H. Himura等人，等离子体2，191（1995）]。为了求解Grad-Shafranov方程，使用有限差分法，应用边界拟合曲线坐标和分界线附近的吸引网格。平衡的突出特点是存在一个狭窄的和尖锐的尖峰在附近的分界线的环形电流分布。
Two-dimensional numerical equilibria of field-reversed configuration (FRC) plasmas in the strong mirror field applied externally are studied by means of the Grad–Shafranov equation. Appropriate choice of the pressure function is necessary to obtain a thin and elongated equilibrium, as observed in the FRC Injection Experiment (FIX) [H. Himura et al., Phys. Plasmas 2, 191 (1995)]. To solve the Grad–Shafranov equation, the finite difference method is used, applying the boundary-fitted curvilinear coordinates and the attracted grids near the separatrix. The outstanding feature of the equilibria is the presence of a narrow and sharp spike in the toroidal current profile near the separatrix.