撕裂模环效应耦合的数值模拟  

NUMERICAL SIMULATION OF TEARING MODE WITH TOROIDAL COUPLING

作　　者：彭点云[1] 肖成馨 邱孝明[1] 

机构地区：[1]核工业西南物理研究院

出　　处：《计算物理》1996年第4期466-474,共9页Chinese Journal of Computational Physics

摘　　要：应用三点中心差分格式求解了在端点有二阶可去奇点和在有理面上具有一阶不可去奇点的撕裂模方程，并提出了近似等价网格的构造方法。在不同的安全因子分布下，对具有环效应耦合撕裂模方程进行了数值模拟，得到相应的判断稳定性的连接参量、耦合强度参数、增长因子等物理量。通过这些数值结果可以得出。Three point center difference scheme is employed to solve tearing mode equations which have the second order removing singularity at an interval end and the first order non removing sigularity on the rational magnetic surface in the interval. A method of approximately equivalent grids is presented. The numerical simulations of the tearing mode equations with toroidal coupling are done under different safety factor distributions, and give the corresponding link parameters which can determine the stability of the mode, coupling intensity parameters, growing factors. These numerical results show that the toroidal coupling effect in linear stage has a little influence.

关 键 词：撕裂模方程 差分格式 近似等价网格 

分 类 号：O242.2[理学—计算数学]