Speaker
Dr
Ralf Kleiber
(Max-Planck-Institut für Plasmaphysik)
Description
Results from a hybrid approach (CKA-EUTERPE code) which couples an MHD code
with a gyrokinetic code are presented. Although perturbative, it offers a
relatively fast way to investigate the destabilisation of Alfven modes by
fast particles. TAE saturation amplitudes and their scaling with growth rate
and collisionality were investigated in a tokamak as well as in Wendelstein
7-X.
Full volume linear electrostatic gyrokinetic simulations for an OP 1.1
Wendelstein 7-X scenario showed modes driven by the strong electron
temperature gradient with negligible influence from trapped particles.
Using a Fourier solver approach, long-time fully kinetic runs of damped GAEs and
TAEs could be performed. Super-resolution methods allowed to accurately
resolve the continuous Alfven spectrum.
| Country or International Organization | Germany |
|---|---|
| Paper Number | TH/P2-4 |
Primary author
Dr
Ralf Kleiber
(Max-Planck-Institut für Plasmaphysik)
Co-authors
Dr
Axel Könies
(Max-Planck-Institut für Plasmaphysik)
Mr
Christoph Slaby
(Max-Planck-Institut für Plasmaphysik)
Dr
Jörg Riemann
(Max-Planck-Institut für Plasmaphysik)
Dr
Matthias Borchardt
(Max-Planck-Institut für Plasmaphysik)
Dr
Oleksiy Mishchenko
(Max-Planck-Institut für Plasmaphysik)
Dr
Roman Hatzky
(Max-Planck-Institut für Plasmaphysik)
