Topic/Type: 1.2 Fusion Plasmas (magnetic & inertial confinement), Poster

Linear and non-linear simulations using the EUTERPE gyrokinetic code

E. S?nchez1, R. Kleiber2, R. Hatzky3, A. Soba4, X. Saez4, F. Castej?n1, J. M. Cela4

1 Laboratorio Nacional de Fusi?n, Avda. Complutense 22, 28040, Madrid, Spain
2 Max-Planck Institut f?r Plasmaphysik, EURATOM-Association, Wendelsteinstra?e 1, 17491 Greifswald, Germany
3 Computer Center of the Max Planck Society and the IPP, Boltzmannstra?e 2, 85748 Garching, Germany
4 Barcelona Supercomputing Center (BSC-CNS), Edificio C6-E201, Campus Nord UPC, Jordi Girona 1-3, 08034 Barcelona, Spain

The EUTERPE gyrokinetic code was created at the EPFL in Lausanne as a global linear particle in cell code for studying electrostatic plasma instabilities [1]. It allows three-dimensional turbulence simulations using a plasma equilibrium calculated with the VMEC code as a starting point. EUTERPE was further developed at the Max Planck IPP and several linear calculations of ion temperature gradient (ITG) driven turbulence in tokamak and stellarator geometry have been carried out using it [2,3,4]. The code has been afterwards heavily optimized and improved and non-linear dynamics have been included.
In the present work we report on several linear and non-linear simulations recently carried out using this code. A non-linear simulation of ITG instabilities has been carried out in screw pinch geometry and the results are compared to those previously obtained using the TORB code [5]. The influence of a finite beta on the development of the instabilities in a screw pinch has also been studied both in the linear and non-linear regimes. The results are compared with previous ones [4,6].

[1] G. Jost, T. M. Tran, K. Appert, et. al. in Theory of Fusion Plasmas, International Workshop, Varenna, September 1998. Editrice Compositori, Societ? Italiana di Fisica, Bologna, 1999, p.419

[2] G. Jost, T. M. Tran, W. Cooper, et al. Physics of Plasmas 8: 3321 (2001).

[3] V. Kornilov, R. Kleiber, R. Hatzky, et. al. Physics of Plasmas 11: 3196 (2004).

[4] V. Kornilov, R. Kleiber & R. Hatzky. Nuclear Fusion 45: 238 (2005).

[5] C. N?hrenberg, R. Hatzky, S. Sorge, et. al. Global ITG Turbulence in Screw-Pinch Geometry. IAEA TM on Innovative Concepts and Theory of Stellarators, Madrid 2005.

[6] S. Sorge. Plasma Phys. Control. Fusion 46: 535 (2004).