Multiscale investigations of drift-wave turbulence and plasma flows: measurements and total-distribution-function gyrokinetic simulations.

Abstract

Direct measurements of micro-, meso-, and macroscale transport phenomena in the FT-2 tokamak are shown to be quantitatively reproduced by global full f nonlinear gyrokinetic simulation predictions. A detailed agreement with mean equilibrium E×B flows, oscillating fine-scale zonal flows, and turbulence spectra observed by a set of sophisticated microwave backscattering techniques as well as a good fit of the thermal diffusivity data are demonstrated. A clear influence of the impurity ions on the fluctuating radial electric field is observed.

Cite this paper

@article{Leerink2012MultiscaleIO, title={Multiscale investigations of drift-wave turbulence and plasma flows: measurements and total-distribution-function gyrokinetic simulations.}, author={S. Leerink and V V Bulanin and A. D. Gurchenko and E. Z. Gusakov and Jukka A. Heikkinen and Salomon J. Janhunen and S. I. Lashkul and A. B. Altukhov and L. A. Esipov and Melanie Kantor and Timo P. Kiviniemi and Tuomas Korpilo and D V Kuprienko and Anatoly V. Petrov}, journal={Physical review letters}, year={2012}, volume={109 16}, pages={165001} }