Effects of Plasma Shaping on Nonlinear Gyrokinetic Turbulence.

Belli, E. A. ; Hammett, G. W. ; Dorland, W.

Technical Information Center Oak Ridge Tennessee

关键词: Plasma instability;    Shape;    Heat flux;    Plasma;    Nonlinear problems;   

RP-ID  :  DE2008939431

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The effects of flux surface shape on the gyrokinetic stability and transport of tokamak plasmas are studied using the GS2 code (M. Kotschenreuther, G. Rewoldt, and W.M. Tang, Comput. Phys. Commun. 88, 128 (1995); W. Dorland, F. Jenko, M. Kotschenreuther, and B.N. Rogers, Phys. Rev. Lett. 85, 5579 (2000)). Studies of the scaling of nonlinear turbulence with shaping parameters are performed using analytic equilibria based on interpolations of representative shapes of the Joint European Torus (JET) (P.H. Rebut and B.E. Keen, Fusion Technol. 11, 13 (1987)). High shaping is found to be a stabilizing influence on both the linear ion-temperature-gradient (ITG) instability and the nonlinear ITG turbulence.