Global geodesic acoustic mode in a tokamak with positive magnetic shear and a monotonic temperature profile

被引：15

作者：

Ilgisonis, V. I. ^{[1
,2
]}

Khalzov, I. V. ^{[3
]}

Lakhin, V. P. ^{[1
]}

Smolyakov, A. I. ^{[1
,4
]}

Sorokina, E. A. ^{[1
,2
]}

机构：

[1] NRC Kurchatov Inst, Moscow, Russia

[2] Peoples Friendship Univ Russia, Moscow, Russia

[3] Univ Wisconsin, Madison, WI 53706 USA

[4] Univ Saskatchewan, Saskatoon, SK, Canada

来源：

PLASMA PHYSICS AND CONTROLLED FUSION | 2014年 / 56卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

tokamak; GAM; MHD; ZONAL FLOWS; EXPLANATION;

D O I：

10.1088/0741-3335/56/3/035001

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：

The analytical solution for global geodesic acoustic modes (GGAMs) in a tokamak with a positive magnetic shear profile and a monotonic temperature profile is found in the framework of magnetohydrodynamic theory. The axisymmetric eigenvalue problem for perturbed pressure and electrostatic potential is formulated as a recurrent set of equations for poloidal Fourier harmonics. The integral condition for the existence of GGAMs is obtained. It is shown that the traditional paradigm of having a off-axis maximum of the local geodesic acoustic frequency is not necessary for the existence of GGAMs; a representative example is designed.

引用

页数：7

共 50 条

[21] Complete multi-field characterization of the geodesic acoustic mode in the TCV tokamak
de Meijere, C. A.
Coda, S.
Huang, Z.
Vermare, L.
Vernay, T.
Vuille, V.
Brunner, S.
Dominski, J.
Hennequin, P.
Kraemer-Flecken, A.
Merlo, G.
Porte, L.
Villard, L.
PLASMA PHYSICS AND CONTROLLED FUSION, 2014, 56 (07)
[22] Energetic-particle-induced electromagnetic geodesic acoustic mode in tokamak plasmas
Wang, Lingfeng
Dong, J. Q.
He, Zhixiong
He, Hongda
Shen, Y.
PHYSICS OF PLASMAS, 2014, 21 (07)
[23] Spectral features of the geodesic acoustic mode and its interaction with turbulence in a tokamak plasma
Lan, T.
Liu, A. D.
Yu, C. X.
Yan, L. W.
Hong, W. Y.
Zhao, K. J.
Dong, J. Q.
Qian, J.
Cheng, J.
Yu, D. L.
Yang, Q. W.
PHYSICS OF PLASMAS, 2008, 15 (05)
[24] Geodesic-acoustic-mode in JFT-2M tokamak plasmas
Ido, T.
Miura, Y.
Kamiya, K.
Hamada, Y.
Hoshino, K.
Fujisawa, A.
Itoh, K.
Itoh, S. -I.
Nishizawa, A.
Ogawa, H.
Kusama, Y.
PLASMA PHYSICS AND CONTROLLED FUSION, 2006, 48 (04) : S41 - S50
[25] Geodesic acoustic mode excitation by drift waves in tokamak plasmas with toroidal rotation
Yu, Jun
Gong, Xueyu
NUCLEAR FUSION, 2013, 53 (12)
[26] Nonlinear mode couplings between geodesic acoustic mode and toroidal Alfven eigenmodes in the EAST tokamak
Zhu, Xiang
Zeng, Long
Qiu, Zhiyong
Lin, Shiyao
Zhang, Tao
Bao, Jian
Hu, Youjun
Tang, Tian
Liu, Haiqing
Kong, Defeng
Wang, Yumin
Shi, Tonghui
Hao, Baolong
Qian, Jinping
Zang, Qing
Lyu, Bo
Wu, Muquan
Li, Hang
Jie, Yinxian
Gao, Xiang
Lin, Xiaodong
PHYSICS OF PLASMAS, 2022, 29 (06)
[27] Energetic particle driven geodesic acoustic mode in a toroidally rotating tokamak plasma
Ren, Haijun
NUCLEAR FUSION, 2017, 57 (01)
[28] The role of geodesic acoustic mode on reducing the turbulent transport in the edge plasma of tokamak
Geng, K. N.
Kong, D. F.
Liu, A. D.
Lan, T.
Yu, C. X.
Zhao, H. L.
Yan, L. W.
Cheng, J.
Zhao, K. J.
Dong, J. Q.
Duan, X. R.
Chen, R.
Zhang, T.
Zhang, S. B.
Gao, X.
Li, J.
Xie, J. L.
Li, H.
Liu, W. D.
PHYSICS OF PLASMAS, 2018, 25 (01)
[29] Linear properties of global energetic particle induced geodesic acoustic mode with bump-on-tail distribution in tokamak plasmas
Xiang, Xijin
Fu, Guoyong
PHYSICS OF PLASMAS, 2019, 26 (03)
[30] Nonlinear excitation of a geodesic acoustic mode by reversed shear Alfven eignemodes
Wang, Yahui
Wang, Tao
Wei, Shizhao
Qiu, Zhiyong
PLASMA SCIENCE & TECHNOLOGY, 2022, 24 (02)

← 1 2 3 4 5 →