Effect of the resistive wall on the growth rate of weakly unstable external kink mode in general 3D configurations

被引：16
作者：
Chu, MS [1 ]
Ichiguchi, K
机构：
[1] Natl Inst Fus Sci, Toki 5095292, Japan
[2] Gen Atom Co, San Diego, CA USA
来源：
NUCLEAR FUSION | 2005年 / 45卷 / 08期
关键词：
D O I：
10.1088/0029-5515/45/8/006
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 formulation of a method for the systematic computation of the growth rate of the weakly unstable resistive wall mode (RWM) in 3D configurations by using results from ideal stability codes is presented. It is shown that the growth rate of the RWM is given, approximately, by the rate at which the available free energy for the ideal external kink mode can be dissipated by the resistive wall. The eigenfunction is also approximated by that of the external kink mode. This formulation is demonstrated by coupling to the ideal MHD code KSTEP with computation of the dissipation on the resistive wall. Results of the stability of the RWM in LHD plasmas and discussion of the validity and improvement of the computation are also included.
引用
收藏
页码：804 / 813
页数：10
相关论文
共 26 条
[1]   APPLICATION OF THE STELLARATOR EXPANSION FOR PLASMA STABILITY STUDIES IN STELLARATORS [J].
ANANIA, G ;
JOHNSON, JL .
PHYSICS OF FLUIDS, 1983, 26 (10) :3070-3078
[2]  
ANDERSON DV, 1990, SCI COMP SUPERCOMPUT, V2, P159
[3]   AN ENERGY PRINCIPLE FOR HYDROMAGNETIC STABILITY PROBLEMS [J].
BERNSTEIN, IB ;
FRIEMAN, EA ;
KRUSKAL, MD ;
KULSRUD, RM .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1958, 244 (1236) :17-40
[4]   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
[5]   Theoretical modelling of the feedback stabilization of external MHD modes in toroidal geometry [J].
Chance, MS ;
Chu, MS ;
Okabayashi, M ;
Turnbull, AD .
NUCLEAR FUSION, 2002, 42 (03) :295-300
[6]   Vacuum calculations in azimuthally symmetric geometry [J].
Chance, MS .
PHYSICS OF PLASMAS, 1997, 4 (06) :2161-2180
[7]   Normal mode approach to modelling of feedback stabilization of the resistive wall mode [J].
Chu, MS ;
Chance, MS ;
Glasser, AH ;
Okabayashi, M .
NUCLEAR FUSION, 2003, 43 (06) :441-454
[8]  
FREIDBERG JP, 1987, IDEAL MAGNETOHYDRODY, P309
[9]   Direct observation of the resistive wall mode in a tokamak and its interaction with plasma rotation [J].
Garofalo, AM ;
Turnbull, AD ;
Austin, ME ;
Bialek, J ;
Chu, MS ;
Comer, KJ ;
Fredrickson, ED ;
Groebner, RJ ;
La Haye, RJ ;
Lao, LL ;
Lazarus, EA ;
Navratil, GA ;
Osborne, TH ;
Rice, BW ;
Sabbagh, SA ;
Scoville, JT ;
Strait, EJ ;
Taylor, TS .
PHYSICAL REVIEW LETTERS, 1999, 82 (19) :3811-3814
[10]  
Glasser A., 1997, Bull. Am. Phys. Soc, V42, P1848
123