Flux surface shaping effects on tokamak edge turbulence and flows
Plasma Physics
2010-05-10 v1
Abstract
Shaping of magnetic flux surfaces is found to have a strong impact on turbulence and transport in tokamak edge plasmas. A series of axisymmetric equilibria with varying elongation and triangularity, and a divertor configuration are implemented into a computational gyrofluid turbulence model. The mechanisms of shaping effects on turbulence and flows are identified. Transport is mainly reduced by local magnetic shearing and an enhancement of zonal shear flows induced by elongation and X-point shaping.
Keywords
Cite
@article{arxiv.physics/0509182,
title = {Flux surface shaping effects on tokamak edge turbulence and flows},
author = {Alexander Kendl and Bruce D. Scott},
journal= {arXiv preprint arXiv:physics/0509182},
year = {2010}
}
Comments
10 pages, 11 figures. Submitted to Physics of Plasmas