arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1802.02174physics.plasm-ph
收藏

自洽逃逸电子模拟的流体动力学框架

A fluid-kinetic framework for self-consistent runaway-electron simulations

Eero Hirvijoki, Chang Liu, Guannan Zhang, Diego del-Castillo-Negrete, Dylan Brennan

摘要:

自洽耦合动力学逃逸电子物理等离子体的宏观演化的问题是通过将电子人口分为散装和尾巴。采用概率封闭来确定批量和尾部种群之间的耦合,将它们保留为真正的非负分布函数。宏观单流体方程和逃逸的电子人口的动力学方程,然后推导出,现在显示汇和源项,由于批量和尾部之间的电子转移。

英文摘要:

The problem of self-consistently coupling kinetic runaway-electron physics to the macroscopic evolution of the plasma is addressed by dividing the electron population into a bulk and a tail. A probabilistic closure is adopted to determine the coupling between the bulk and the tail populations, preserving them both as genuine, non-negative distribution functions. Macroscopic one-fluid equations and the kinetic equation for the runaway-electron population are then derived, now displaying sink and source terms due to transfer of electrons between the bulk and the tail.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑