Speaker
Mr
Ajay Chandrarajan Jayalekshmi
(Swiss Plasma Center)
Description
The non-adiabatic response of passing electrons near low order Mode Rational Surfaces (MRSs) lead to fine radial structures on ion-scale microinstabilities. It has been shown that these structures persist in the non-linear turbulent regime and lead to the corrugation of density, temperature and zonal flow profiles. This effect significantly affects the turbulent fluxes of heat and particles as shown using local and global gyrokinetic simulations [Dominski, Phys. Plasmas 24, 022308 (2017)]. We have pursued this study by addressing how turbulent transport is affected by the density of low order MRSs, which is varied by considering either different values of magnetic shear or of the minimum toroidal mode number.
Author
Mr
Ajay Chandrarajan Jayalekshmi
(Swiss Plasma Center)
Co-authors
Dr
Stephan Brunner
(Swiss Plasma Center)
Dr
Julien Dominski
(Princeton Plasma Physics Laboratory)
Dr
Gabriele Merlo
(University of California Los Angeles)
Prof.
Ben McMillan
(Centre for Fusion, Space and Astrophysics, Department of Physics University of Warwick)
Dr
Tobias Görler
(Max-Planck-Institut für Plasmaphysik )
Dr
Daniel Told
Prof.
Frank Jenko
(Max-Planck-Institut für Plasmaphysik )
