4 papers · 1 filter
Statistical theory of intermittency in a multi-scale model of MHD and micro-turbulence
Johan Anderson, Eun-jin Kim
Traditionally the effects of MHD instabilities and micro-instabilities on plasma confinement are investigated separately. However, these two instabilities often occur simultaneousl…
Non-perturbative models of intermittency in edge turbulence
Johan Anderson, Eun-jin Kim
A theory of the probability distribution function (PDF) tails of the blob density in plasma edge turbulence is provided. A simplified model of the fast convective radial transport…
The momentum flux probability distribution function for ion-temperature-gradient turbulence
Johan Anderson, Eun-jin Kim
There has been overwhelming evidence that coherent structures play a critical role in determining the overall transport in a variety of systems. We compute the probability distribu…
Quasilinear analysis of the zonal flow back-reaction on ion-temperature-gradient mode turbulence
Johan Anderson, Jiquan Li, Yasuaki Kishimoto +1
There is strong evidence in favor for zonal flow suppression of the Ion-Temperature-Gradient (ITG) mode turbulence, specifically close to the linear stability threshold. The presen…