The gyrokinetic water-bag modeling in toroidal geometry
Institut Jean Lamour, UMR 7198 CNRS, Nancy Université,
2 CEA, DSM, Institut de Recherche sur la Fusion Magnétique, Association Euratom-CEA, Cadarache, 13108 St-Paul-lez-Durance, France
a e-mail: firstname.lastname@example.org
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