Resistive wall mode control code maturity: progress and specific examples
Journal article, 2010
Two issues of the resistive wall mode (RWM) control code maturity are addressed: the inclusion of advanced mode damping physics beyond the ideal MHD description, and the possibility of taking into account the influence of 3D features of the conducting structures on the mode stability and control. Examples of formulations and computational results are given, using the MARS-F/K codes and the CarMa code. The MARS-K calculations for a DIII-D plasma shows that the fast ion contributions, which can give additional drift kinetic stabilization in the perturbative approach, also drive an extra unstable branch of mode in the self-consistent kinetic modelling. The CarMa modelling for the ITER steady state advanced plasmas shows about 20% reduction in the RWM growth rate by the volumetric blanket modules. The multi-mode analysis predicts a weak interaction between the n = 0 and the n = 1 RWMs, due to the 3D ITER walls. The CarMa code is also successfully applied to model the realistic feedback experiments in RFX.
feedback stabilization
tokamaks
plasmas
mhd stability
Author
Yueqiang Liu
Culham Science Centre
M. S. Chu
General Atomics
W. F. Guo
Chinese Academy of Sciences
F. Villone
Universita di Cassino e del Lazio Meridionale
R. Albanese
University of Naples Federico II
G. Ambrosino
Universita di Cassino e del Lazio Meridionale
M. Baruzzo
Consorzio Rfx
T. Bolzonella
Consorzio Rfx
I. T. Chapman
Culham Science Centre
A. M. Garofalo
General Atomics
C. G. Gimblett
Culham Science Centre
R. J. Hastie
Culham Science Centre
T. C. Hender
Culham Science Centre
G. L. Jackson
General Atomics
R. J. La Haye
General Atomics
M. J. Lanctot
Columbia University
Y. In
FAR-TECH, Inc.
G. Marchiori
Consorzio Rfx
M. Okabayashi
Princeton University
R. Paccagnella
Consorzio Rfx
M. F. Palumbo
Universita di Cassino e del Lazio Meridionale
A. Pironti
Universita di Cassino e del Lazio Meridionale
H. Reimerdes
Columbia University
G. Rubinacci
University of Naples Federico II
A. Soppelsa
Consorzio Rfx
E. J. Strait
General Atomics
S. Ventre
Universita di Cassino e del Lazio Meridionale
Dimitriy Yadykin
Chalmers, Earth and Space Sciences, Transport Theory
Plasma Physics and Controlled Fusion
0741-3335 (ISSN) 1361-6587 (eISSN)
Vol. 52 10 104002Subject Categories (SSIF 2011)
Physical Sciences
DOI
10.1088/0741-3335/52/10/104002