• 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 >Bifurcation in the MHD behaviour of a self-organizing system: the reversed field pinch (RFP)
【24h】

Bifurcation in the MHD behaviour of a self-organizing system: the reversed field pinch (RFP)

机译：自组织系统的MHD行为中的分歧：反向场收缩（RFP）

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

Within the framework of MHD modelling the RFP is shown to develop turbulent or laminar regimes switching from the former to the latter in a continuous way depending on the strength of dissipative forces (the higher they are the more laminar is the corresponding regime). In either of these cases interesting features can be observed such as the occurrence of quasiperiodic relaxation events involving reconnection processes, or the formation of stationary helical symmetric configurations. The first case corresponds to the conventional turbulent dynamo in the RFP where perturbations with multiple helical harmonic content are present. The second case corresponds to a global single helical deformation of the current channel. This simpler configuration is associated with a laminar electrostatic dynamo field and may also be found as a solution of a helical Ohmic equilibrium problem where a finite beta is necessary. The continuity of the transition between the two regimes suggests that the simple helical symmetric solution can provide a fruitful intuitive description of the RFP dynamo in general. Many of the MHD predictions are in good agreement with experimental findings and suggest possible improvements for the confinement properties of the RFP configuration.
机译：在MHD建模的框架内，RFP显示出根据耗散力的强度以连续的方式从前者转换为后者的湍流或层流状态（相应的层越高，层流越多）。在这两种情况下，都可以观察到有趣的特征，例如涉及重新连接过程的准周期性弛豫事件的发生，或固定螺旋对称构型的形成。第一种情况对应于RFP中的常规湍流发电机，其中存在具有多个螺旋谐波含量的扰动。第二种情况对应于电流通道的整体单螺旋形变形。这种较简单的配置与层状静电发电机场相关联，也可以作为需要有限β的螺旋欧姆平衡问题的解决方案而找到。两种状态之间过渡的连续性表明，简单的螺旋对称解决方案通常可以对RFP发电机提供富有成果的直观描述。许多MHD预测与实验结果非常吻合，并建议对RFP配置的限制属性进行可能的改进。

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