https://doi.org/10.1140/epjd/e2011-10595-4
Regular Article
The gyrokinetic water-bag modeling in toroidal geometry
1
Institut Jean Lamour, UMR 7198 CNRS, Nancy Université,
Bd des
Aiguillettes, 54500
Vandoeuvre-lès-Nancy,
France
2
CEA, DSM, Institut de Recherche sur la Fusion Magnétique,
Association Euratom-CEA, Cadarache, 13108
St-Paul-lez-Durance,
France
a e-mail: etienne.gravier@ijl.nancy-universite.fr
Received:
19
October
2010
Received in final form:
9
February
2011
Published online:
15
April
2011
The present paper addresses the gyrokinetic water-bag model in toroidal geometry. The previous works were focused on the water-bag concept in magnetized cylindrical plasmas. Here we report on the possibility to improve the water-bag model by taking into account the curvature and gradient drifts. After a presentation of the model, a local linear analysis with some approximations is performed. Interchange and ion temperature gradient instabilities are examined with this new gyro-water-bag model in order to show its ability and its theoretical interest in describing kinetic instabilities in toroidal geometry.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2011
