...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physics of plasmas >Transport of radial heat flux and second sound in fusion plasmas
【24h】

Transport of radial heat flux and second sound in fusion plasmas

机译：聚变等离子体中径向热通量和第二声的传输

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

Simple flux-gradient relations that involve time delay and radial coupling are discussed. Such a formulation leads to a rather simple description of avalanches and may explain breaking of gyroBohm transport scaling. The generalization of the flux-gradient relation (i.e., constitutive relation), which involve both time delay and spatial coupling, is derived from drift-kinetic equation, leading to kinetic definitions of constitutive elements such as the flux of radial heat flux. This allows numerical simulations to compute these cubic quantities directly. The formulation introduced here can be viewed as an extension of turbulence spreading to include the effect of spreading of cross-phase as well as turbulence intensity, combined in such a way to give the flux. The link between turbulence spreading and entropy production is highlighted. An extension of this formulation to general quasi-linear theory for the distribution function in the phase space of radial position and parallel velocity is also discussed.
机译：讨论了涉及时间延迟和径向耦合的简单磁通量梯度关系。这样的表述导致雪崩的描述非常简单，并且可以解释陀螺波姆输运结垢的破坏。涉及时间延迟和空间耦合的通量-梯度关系（即本构关系）的概括是从漂移动力学方程式导出的，从而得出了本构元素的动力学定义，例如径向热通量。这允许数值模拟直接计算这些立方量。此处介绍的公式可视为湍流扩展的扩展，包括交叉相扩展以及湍流强度的影响，以给出通量的方式组合。湍流扩散和熵产生之间的联系被强调。还讨论了该公式扩展到一般拟线性理论的径向位置和平行速度的相空间中的分布函数。

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