Stability of infernal and ballooning modes in advanced tokamak scenarios

被引：14

作者：

Holties, HA ^{[1
]}

Huysmans, GTA ^{[1
]}

Goedbloed, JP ^{[1
]}

Kerner, W ^{[1
]}

Parail, VV ^{[1
]}

Soldner, FX ^{[1
]}

机构：

[1] JET JOINT UNDERTAKING,ABINGDON OX14 3EA,OXON,ENGLAND

来源：

NUCLEAR FUSION | 1996年 / 36卷 / 08期

关键词：

D O I：

10.1088/0029-5515/36/8/I03

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：

A numerical parameter study has been performed in order to find MHD stable operating regimes for advanced tokamak experiments In this study we have concentrated on internal modes. Ballooning stability and stability with respect to infernal modes are considered. The calculations confirm that pressure gradients are the main driving force for infernal modes. It is possible to stabilize infernal modes by elimination of pressure gradients in the region of small shear. In the type of equilibrium considered a flat or slightly non-monotonic q profile is most unstable against infernal modes. Higher shear around the minimum q surface stabilizes these modes. Resistivity does not lead to a significantly more unstable situation. In the region of positive shear pressure, gradients are limited by the destabilization of ballooning modes. The results of the study have been used to construct an equilibrium that is stable up to beta(p) 3.59, beta(N) = 5.44.

引用

页码：973 / 986

页数：14

共 23 条

[1]

CENACCHI G, 1986, 8 EUR C COMP PHYS EI

[2] THEORETICAL-ANALYSIS OF THE ROLE OF THE INFERNAL MODE IN THE STABILITY OF PEAKED PRESSURE PROFILES IN PELLET FUELED JET DISCHARGES [J].

CHARLTON, LA ;

BAYLOR, LR ;

EDWARDS, AW ;

HAMMETT, GW ;

HOULBERG, WA ;

KUPSCHUS, P ;

LYNCH, VE ;

MILORA, SL ;

OROURKE, J ;

SCHMIDT, GL .

NUCLEAR FUSION, 1991, 31 (10) :1835-1842

[3] CONFORMAL MAPPING METHODS IN TWO-DIMENSIONAL MAGNETOHYDRODYNAMICS [J].

GOEDBLOED, JP .

COMPUTER PHYSICS COMMUNICATIONS, 1981, 24 (3-4) :311-321

[4]

GOEDBLOED JP, 1985, PLASMA PHYS CONTROLL, V2, P165

[5] ADVANCED TOKAMAK PHYSICS - STATUS AND PROSPECTS [J].

GOLDSTON, RJ ;

BATHA, SH ;

BULMER, RH ;

HILL, DN ;

HYATT, AW ;

JARDIN, SC ;

LEVINTON, FM ;

KAYE, SM ;

KESSEL, CE ;

LAZARUS, EA ;

MANICKAM, FJ ;

NEILSON, GH ;

NEVINS, WM ;

PERKINS, LJ ;

REWOLDT, G ;

THOMASSEN, KI ;

ZARNSTORFF, MC .

PLASMA PHYSICS AND CONTROLLED FUSION, 1994, 36 (12B) :B213-B227

[6]

GOLDSTON RJ, 1994, CONTROLLED FUSIO 1 C, V17, P319

[7] FREE-BOUNDARY RESISTIVE MODES IN TOKAMAKS [J].

HUYSMANS, GTA ;

GOEDBLOED, JP ;

KERNER, W .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1993, 5 (05) :1545-1558

[8]

HUYSMANS GTA, 1991, P CP90 C COMP PHYS P, P371

[9] OBSERVATION OF A FAST BETA-COLLAPSE DURING HIGH POLOIDAL-BETA DISCHARGES IN JT-60 [J].

ISHIDA, S ;

KOIDE, Y ;

OZEKI, T ;

KIKUCHI, M ;

TSUJI, S ;

SHIRAI, H ;

NAITO, O ;

AZUMI, M .

PHYSICAL REVIEW LETTERS, 1992, 68 (10) :1531-1534

[10]

*ITER JOINT CENTR, 1993, PLASMA PHYS CONTROL, V35, pB23

← 1 2 3 →