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

S. Leerink, V.V. Bulanin, A.D. Gurchenko, E.Z. Gusakov, Jukka Heikkinen, S.J. Janhunen, S.I. Lashkul, A.B. Altukhov, L.A. Esipov, M.Y. Kantor, T.P. Kiviniemi, T. Korpilo, D.V. Kuprienko, A.V. Petrov

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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.
Original languageEnglish
Article number165001
JournalPhysical Review Letters
Volume109
Issue number16
DOIs
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed

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Leerink, S., Bulanin, V. V., Gurchenko, A. D., Gusakov, E. Z., Heikkinen, J., Janhunen, S. J., Lashkul, S. I., Altukhov, A. B., Esipov, L. A., Kantor, M. Y., Kiviniemi, T. P., Korpilo, T., Kuprienko, D. V., & Petrov, A. V. (2012). Multiscale investigations of drift-wave turbulence and plasma flows: Measurements and total-distribution-function gyrokinetic simulations. Physical Review Letters, 109(16), [165001]. https://doi.org/10.1103/PhysRevLett.109.165001