Inertia and ion Landau damping of low-frequency magnetohydrodynamical modes in tokamaks

被引：85

作者：

Bondeson, A ^{[1
]}

Chu, MS ^{[1
]}

机构：

[1] GEN ATOM CO, SAN DIEGO, CA 92186 USA

来源：

PHYSICS OF PLASMAS | 1996年 / 3卷 / 08期

关键词：

D O I：

10.1063/1.871637

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 inertia and Landau damping of low-frequency magnetohydrodynamical modes are investigated using the drift-kinetic energy principle for the motion along the magnetic field. Toroidal trapping of the ions decreases the Landau damping and increases the inertia for frequencies below (r/R)(1/2)upsilon(thi)/qR. The theory is applied to toroidicity-induced Alfven eigenmodes and to resistive wall modes in rotating plasmas. An explanation of the beta-induced Alfven eigenmode is given in terms of the Pfirsch-Schluter-like enhancement of inertia at low frequency. The toroidal inertia enhancement also increases the effects of plasma rotation on resistive wall modes. (C) 1996 American Institute of Physics.

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页码：3013 / 3022

页数：10

相关论文

共 28 条

[1] INFLUENCE OF TRAPPED THERMAL PARTICLES ON INTERNAL KINK MODES IN HIGH-TEMPERATURE TOKAMAKS [J].

ANTONSEN, TM ;

BONDESON, A .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1993, 5 (11) :4090-4098

[2] EFFECTS OF TRAPPED THERMAL PARTICLES ON THE N=1 INTERNAL KINK MODE IN TOKAMAKS [J].

ANTONSEN, TM ;

BONDESON, A .

PHYSICAL REVIEW LETTERS, 1993, 71 (13) :2046-2049

[3] ELECTROSTATIC MODIFICATION OF VARIATIONAL-PRINCIPLES FOR ANISOTROPIC PLASMAS [J].

ANTONSEN, TM ;

LEE, YC .

PHYSICS OF FLUIDS, 1982, 25 (01) :132-142

[4] DESTABILIZATION OF THE SHEAR ALFVEN MODE BY ALPHA-PARTICLES AND OTHER HIGH-ENERGY IONS [J].

BELIKOV, VS ;

KOLESNICHENKO, YI ;

SILIVRA, OA .

NUCLEAR FUSION, 1992, 32 (08) :1399-1404

[5] STABILITY ANALYSIS OF RESISTIVE WALL KINK MODES IN ROTATING PLASMAS [J].

BETTI, R ;

FREIDBERG, JP .

PHYSICAL REVIEW LETTERS, 1995, 74 (15) :2949-2952

[6] IDEAL STABILITY OF CYLINDRICAL PLASMA IN THE PRESENCE OF MASS-FLOW [J].

BONDESON, A ;

IACONO, R .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1989, 1 (07) :1431-1443

[7] STABILIZATION OF EXTERNAL-MODES IN TOKAMAKS BY RESISTIVE WALLS AND PLASMA ROTATION [J].

BONDESON, A ;

WARD, DJ .

PHYSICAL REVIEW LETTERS, 1994, 72 (17) :2709-2712

[8] LOW-N SHEAR ALFVEN SPECTRA IN AXISYMMETRICAL TOROIDAL PLASMAS [J].

CHENG, CZ ;

CHANCE, MS .

PHYSICS OF FLUIDS, 1986, 29 (11) :3695-3701

[9] A NUMERICAL STUDY OF THE HIGH-N SHEAR ALFVEN SPECTRUM GAP AND THE HIGH-N GAP MODE [J].

CHU, MS ;

GREENE, JM ;

LAO, LL ;

TURNBULL, AD ;

CHANCE, MS .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1992, 4 (11) :3713-3721

[10] EFFECT OF TOROIDAL PLASMA-FLOW AND FLOW SHEAR ON GLOBAL MAGNETOHYDRODYNAMIC MHD MODES [J].

CHU, MS ;

GREENE, JM ;

JENSEN, TH ;

MILLER, RL ;

BONDESON, A ;

JOHNSON, RW ;

MAUEL, ME .

PHYSICS OF PLASMAS, 1995, 2 (06) :2236-2241