Flux-driven gyrokinetic simulations of ion turbulent transport at low magnetic shear

被引：8

作者：

Sarazin, Y. ^{[1
]}

Strugarek, A. ^{[1
,2
]}

Dif-Pradalier, G. ^{[3
]}

Abiteboul, J. ^{[1
]}

Allfrey, S. ^{[1
]}

Garbet, X. ^{[1
]}

Ghendrih, Ph ^{[1
]}

Grandgirard, V. ^{[1
]}

Latu, G. ^{[1
]}

机构：

[1] CEA, IRFM, F-13108 St Paul Les Durance, France

[2] CEA, IRFU, F-91191 Gif Sur Yvette, France

[3] Univ Calif San Diego, Cent Astrophys & Sci, La Jolla, CA 92093 USA

来源：

THEORY OF FUSION PLASMAS: JOINT VARENNA-LAUSANNE INTERNATIONAL WORKSHOP | 2010年 / 260卷

关键词：

TOKAMAKS; BARRIERS; PLASMA; JET;

D O I：

10.1088/1742-6596/260/1/012017

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Ion Temperature Gradient driven turbulence is investigated with the global full-f gyrokinetic code GYSELA for different magnetic equilibria. Reversed shear and monotonous q profile cases do not exhibit dramatic changes nor in the dynamics nor in the level of turbulence, leading to similar mean profiles. Especially, not transport barrier is observed in the vicinity of s - 0 in the general case, although the radial extent of the gap without resonant modes is larger than the typical turbulence correlation length. Conversely, a transport barrier is found to develop in the gap region if non resonant modes are artificially suppressed from the simulation. Such simulations tend to reconcile previously published contradictory results, while extending the analysis to more realistic flux-driven gyrokinetic regimes.

引用

页数：9

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