A fluid-kinetic framework for self-consistent runaway-electron simulations
Plasma Physics
2018-08-01 v3
Abstract
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.
Cite
@article{arxiv.1802.02174,
title = {A fluid-kinetic framework for self-consistent runaway-electron simulations},
author = {Eero Hirvijoki and Chang Liu and Guannan Zhang and Diego del-Castillo-Negrete and Dylan Brennan},
journal= {arXiv preprint arXiv:1802.02174},
year = {2018}
}
Comments
7 pages, 1 figure