A magnetohydrodynamic model of rotating magnetic field current drive in a field-reversed configuration
A magnetohydrodynamic model of rotating magnetic field current drive in a field-reversed configuration
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DOI：
10.1063/1.1290279
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发表时间：
2000-09
影响因子：
2.2
通讯作者：
R. Milroy
中科院分区：
文献类型：
--
作者：
R. Milroy
建立了一个数值模型，研究了旋转磁场作为电子电流驱动机制，用于场反转位形（FRC）的形成和维持。以前的模型假设一个固定的离子模型，但在这里一个完整的二维（r-θ）磁流体动力学模型已经开发出来。该模型已被应用到两类问题：（1）对于维持问题，一个RMF被应用到预先存在的FRC。(2)对于形成问题，RMF被施加到具有初始均匀的轴向磁场和背景等离子体密度的等离子体柱。RMF感应电流反转该偏置场，形成FRC。该代码采用了一个选项，包括一些三维效果，以满足平均β条件，并在将其应用于维持模拟时平衡内外场线之间的压力和密度。
A numerical model has been developed to study the use of a Rotating Magnetic Field (RMF) as an electron current drive mechanism for the formation and sustainment of a field-reversed configuration (FRC). Previous models assumed a fixed ion model, but here a full two-dimensional (r-θ) magnetohydrodynamic model has been developed. The model has been applied to two classes of problems: (1) For the sustainment problem, a RMF is applied to a preexisting FRC. (2) For the formation problem, a RMF is applied to a plasma column with an initially uniform axial magnetic field and background plasma density. The RMF-induced current reverses this bias field, forming a FRC. The code employs an option to include some three-dimensional effects to satisfy the average β condition and equalize pressure and density between inner and outer field lines, when it is applied to sustainment simulations.