...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Plasma physics and controlled fusion >The high-frequency constitutive relation of axisymmetric toroidal plasmas
【24h】

The high-frequency constitutive relation of axisymmetric toroidal plasmas

机译：轴对称环形等离子体的高频本构关系

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The response of a hot axisymmetric toroidal plasma to oscillatory fields is derived by integrating the linearized Vlasov equation along the unperturbed orbits written in the drift approximation. The details of the equilibrium configuration are taken into account with the same degree of accuracy as in the gyrokinetic approach; instead of approximating the kinetic equation, however, we approximate its solution. The integral constitutive relation obtained is valid to all orders in the Larmor radius, and for arbitrary frequency, except for the omission of relativistic effects. Finite Larmor radius wave equations adequate for the numerical simulation of ion cyclotron heating and current drive in tokamaks can be obtained from the general results by expanding to second order in the Larmor radius, while neglecting the perpendicular particle drifts and the diamagnetic terms in the equilibrium distribution functions. In the low-frequency domain, in which these effects are important, our wave equations are essentially equivalent to those obtained from a gyrokinetic equation. Some additional approximations, not explicitly stated in the gyrokinetic derivation although usually physically justified, are, however, required to prove this equivalence. [References: 38]
机译：热轴对称环形等离子体对振荡场的响应是通过将线性化的Vlasov方程沿着漂移近似中写入的未扰动轨道积分而得出的。平衡构型的细节要以与陀螺动力学方法相同的精确度加以考虑;而不是近似动力学方程，但是，我们近似其解。除省略相对论效应外，所获得的积分本构关系对拉莫尔半径上的所有阶次以及任意频率均有效。通过将拉莫尔半径扩展到二阶，而忽略了平衡分布中的垂直粒子漂移和反磁性项，可以从一般结果中获得适合于托卡马克中离子回旋加速器加热和电流驱动的数值模拟的有限拉莫尔半径波方程。功能。在这些效应很重要的低频域中，我们的波动方程实质上等同于从陀螺动力学方程获得的波动方程。为了证明这种等效性，需要一些附加的近似值，尽管通常在物理上是合理的，但并未在陀螺动力学推导中明确指出。 [参考：38]

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号