Temperature Gradient, Toroidal and Ion FLR Effects on Drift-Tearing Modes

被引：0

作者：

时浩 ^{[1
,2
,3
]}

张文禄 ^{[2
,4
,3
,1
,5
]}

董超 ^{[2
,3
]}

包健 ^{[2
,3
]}

林志宏 ^{[6
]}

曹金涛 ^{[2
,3
]}

李定 ^{[2
,4
,3
,5
]}

机构：

[1] School of Physical Sciences, University of Science and Technology of China

[2] Beijing National Laboratory for Condensed Matter Physics and Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences

[3] School of Physical Sciences, University of Chinese Academy of Sciences

[4] Songshan Lake Materials Laboratory

[5] CAS Center for Excellence in Ultra-intense Laser Science

[6] Department of Physics and Astronomy, University of California

来源：

Chinese Physics Letters | 2020年 / 08期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

TL631.24 [];

学科分类号：

082701 ;

摘要：

The influences of the temperature gradient and toroidal effects on drift-tearing modes have been studied using the Gyrokinetic Toroidal code. After the thermal force term is introduced into the parallel electron force balance equation, the equilibrium temperature gradient can cause a significant increase in the growth rate of the drifttearing mode and a broadening of the mode structure. The simulation results show that the toroidal effects increase the growth rate of the drift-tearing mode, and the contours of the perturbation field "squeeze" toward the stronger field side in the poloidal section. Finally, the hybrid model for fluid electrons and kinetic ions has been studied briefly, and the dispersion relation of the drift-tearing mode under the influence of ion finite Larmor radius effects is obtained. Compared with the dispersion relation under the fluid model, a stabilizing effect of the ion finite Larmor radius is observed.

引用

页码：62 / 67

页数：6

共 3 条

[1] Thermal transport effects on drift-tearing mode [J].

Nishimura, Seiya ;

Yagi, Masatoshi ;

Itow, Sanae-I. ;

Azumi, Masahumi ;

Itoh, Kimitaka .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2007, 76 (06)

[2]

Electromagnetic formulation of global gyrokinetic particle simulation in toroidal geometry .2 Holod,I,Zhang,W.L,Xiao,Y,Lin,Z. Physics of Plasmas . 2009

[3]

Drake J F,Lee Y C. Phys.Fluids . 1977

← 1 →