Topic/Type: 2.4 Gyro-kinetic and gyro-fluid methods, Poster

Development of a global version of the gyrokinetic microturbulence code GENE

X. Lapillonne1, S. Brunner1, T. G?rler2, F. Jenko2, B. F. McMillan1, F. Merz2, L. Villard1

1 CRPP, Ecole Polytechnique F?d?rale de Lausanne, Switzerland
2 Max-Planck-Institut f?r Plasmaphysik, Garching, Germany

In order to address non-local effects in turbulent transport of
magnetic-fusion devices, the gyrokinetic code GENE [Jenko, Phys. Plasmas 7,
1904 (2000)] has been extended from a flux tube to a more global
geometry. This global version of GENE includes radial variations of
temperature and density profiles, as well as of magnetic equilibrium
quantities. Non-periodic radial boundary conditions allow for profile
evolution. Thanks to an interface with the MHD equilibrium code CHEASE
[L?tjens, Comp. Phys. Comm. 97, 219 (1996)], as well as the implementation
of various types of source and sink terms, the global GENE version will
provide a realistic model for carrying out gyrokinetic, quasi-stationary,
microturbulence simulations over a major fraction of the core plasma.
Validation of the code has in particular been ensured thanks to detailed
comparisons with the global PIC codes GYGLES [Fivaz, Comp. Phys. Comm. 111, 27
(1998)] and ORB5 [S. Jolliet, Comp. Phys. Comm. 177, 409 (2007)].