Published August 2005 | Version v1
Journal article Metadata-only

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

Creators

  • 1. National Institute for Fusion Sciences, Toki 509-5292 (Japan)

Description

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

Availability note (English)

Available online at http://stacks.iop.org/0029-5515/45/804/nf5_8_006.pdf or at the Web site for the journal Nuclear Fusion (ISSN 1741-4326 ) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0029-5515/45/804/nf5_8_006.pdf; http://www.iop.org/;
DOI
10.1088/0029-5515/45/8/006;
PII
S0029-5515(05)92076-0;

Publishing Information

Journal Title
Nuclear Fusion
Journal Volume
45
Journal Issue
8
Journal Page Range
p. 804-813
ISSN
0029-5515
CODEN
NUFUAU

INIS

Country of Publication
International Atomic Energy Agency (IAEA)
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36097187
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
Descriptors DEI
COUPLING; EIGENFUNCTIONS; FREE ENERGY; KINK INSTABILITY; LHD DEVICE; MAGNETOHYDRODYNAMICS; PLASMA; STABILITY; THERMONUCLEAR REACTOR WALLS
Descriptors DEC
CLOSED PLASMA DEVICES; ENERGY; FLUID MECHANICS; FUNCTIONS; HYDRODYNAMICS; INSTABILITY; MECHANICS; PHYSICAL PROPERTIES; PLASMA INSTABILITY; PLASMA MACROINSTABILITIES; THERMODYNAMIC PROPERTIES; THERMONUCLEAR DEVICES