L-H transition dynamics in fluid turbulence simulations with neoclassical force balance
Plasma Physics
2015-06-18 v1
Abstract
Spontaneous transport barrier generation at the edge of a magnetically confined plasma is investigated. To this end, a model of electrostatic turbulence in three-dimensional geometry is extended to account for the impact of friction between trapped and passing particles on the radial electric field. Non-linear flux-driven simulations are carried out, and it is shown that considering the radial and temporal variations of the neoclassical friction coefficients allows for a transport barrier to be generated above a threshold of the input power.
Cite
@article{arxiv.1311.5877,
title = {L-H transition dynamics in fluid turbulence simulations with neoclassical force balance},
author = {Laurent Chôné and Peter Beyer and Yanick Sarazin and Guillaume Fuhr and Clarisse Bourdelle and Sadruddin Benkadda},
journal= {arXiv preprint arXiv:1311.5877},
year = {2015}
}