膨胀
物理
底座
BETA(编程语言)
压力梯度
等离子体
动能
机械
线性稳定性
磁流体力学
不稳定性
自举电流
经典力学
托卡马克
核物理学
程序设计语言
考古
历史
计算机科学
作者
C. K. Sun,X. Q. Xu,C. H.,B. Li
摘要
We present the linear simulations of edge plasma instabilities using the 3-field peeling-ballooning model and gyro-Landau-fluid model under the BOUT++ framework. A series of realistic equilibria of shifted circular geometry are generated by a global equilibrium solver CORSICA, where the Shafranov shift, elongation effects, and bootstrap current are included. The linear growth rate spectrum of the peeling-ballooning modes is shown in a wide range of pressure gradient and parallel current density in the pedestal region. The results show that the bootstrap current stabilizes high beta ballooning modes. The simulations with different fractions of bootstrap current indicate a trend for the existence of the high beta peeling-ballooning mode stability region. Taking the kinetic effects into account, the linear simulations of kinetic peeling-ballooning mode using the gyro-Landau-fluid model show that this region can be accessed.
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