Global gyrokinetic simulations of electromagnetic turbulence in stellarator plasmas

被引：8

作者：

Mishchenko, Alexey ^{[1
]}

Borchardt, Matthias ^{[1
]}

Hatzky, Roman ^{[2
]}

Kleiber, Ralf ^{[1
]}

Koenies, Axel ^{[1
]}

Nuehrenberg, Carolin ^{[1
]}

Xanthopoulos, Pavlos ^{[1
]}

Roberg-Clark, Gareth ^{[1
]}

Plunk, Gabriel G. G. ^{[1
]}

机构：

[1] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany

[2] Max Planck Inst Plasma Phys, D-85748 Garching, Germany

来源：

JOURNAL OF PLASMA PHYSICS | 2023年 / 89卷 / 03期

关键词：

fusion plasma; plasma instabilities; plasma simulation; TRANSPORT;

D O I：

10.1017/S0022377823000363

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：

Global electromagnetic turbulence is simulated in stellarator geometry using the gyrokinetic particle-in-cell code EUTERPE. The evolution of the turbulent electromagnetic field and the plasma profiles is considered at different values of the plasma beta and for different magnetic configurations. It is found that turbulence is linearly driven at relatively high toroidal mode numbers. In the nonlinear regime, lower toroidal mode numbers, including zonal flows, are excited resulting in a quench of the linear instability drive. The turbulent heat flux is outward and leads to the nonlinear relaxation of the plasma temperature profile. The particle flux is inward for the parameters considered. The effect of the parallel perturbation of the magnetic field on the stellarator turbulence is addressed.

引用

页数：14

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