Speaker
Dr
Alessandro Biancalani
(Max-Planck-Institut für Plasmaphysik Euratom Association, Garching, Germany)
Description
In this work, we investigate theoretically the dynamics of global instabilities observed in ASDEX Upgrade (AUG) by means of collisionless numerical simulations. We focus in particular on geodesic acoustic modes (GAM) and shear Alfven instabilities. The numerical tools we use are the codes NEMORB (nonlinear global gyrokinetic PIC), LIGKA (linear global gyrokinetic) and XHMGC (nonlinear global hybrid). In the first part of this work, results of axisymmetric simulations of GAMs with gyrokinetic codes NEMORB and LIGKA with AUG equilibrium profiles are shown. In the second part, we show results of axisymmetric electromagnetic simulations with NEMORB and LIGKA in the presence of an EP population. Finally, in the third part, we show results of single-n (with n the toroidal mode number) numerical simulations of shear Alfven instabilities with NEMORB, LIGKA and XHMGC. Comparisons with analytical theory and experimental data are also shown, for each case of interest.
| Country or International Organisation | Germany |
|---|---|
| Paper Number | EX/P1-18 |
Primary author
Dr
Alessandro Biancalani
(Max-Planck-Institut für Plasmaphysik Euratom Association, Garching, Germany)
Co-authors
Dr
Alberto Bottino
(Max-Planck-Institut für Plasmaphysik, Garching, Germany)
Dr
Bruce Scott
(Max-Planck-Institut für Plasmaphysik, Garching, Germany)
Dr
Claudio Di Troia
(Associazione Euratom-ENEA sulla Fusione, C.P. 65-I-00044-Frascati, Rome, Italy)
Dr
David Zarzoso
(Max-Planck-Institut für plasmaphysik, 85748 Garching, Germany)
Fulvio Zonca
(Associazione EURATOM-ENEA sulla Fusione)
Dr
Garrard Conway
(Max-Planck-Institut fuer Plasmaphysik)
Dr
Gregorio Vlad
(Associazione Euratom-ENEA sulla Fusione, C.P. 65-I-00044-Frascati, Rome, Italy)
Dr
Patrick Simon
(Max-Planck-Institut für Plasmaphysik, Garching, Germany)
Dr
Philipp Lauber
(Max-Planck-Institut für Plasmaphysik, Garching, Germany)
Dr
Sergio Briguglio
(Associazione Euratom-ENEA sulla Fusione, C.P. 65-I-00044-Frascati, Rome, Italy)
Dr
Xin Wang
(Max-Planck-Institute für Plasmaphysik, 85748 Garching, Germany)
