Physics of penetration of resonant magnetic perturbations used for Type I edge localized modes suppression in tokamaks

被引：86

作者：

Becoulet, M. ^{[1
]}

Huysmans, G. ^{[1
]}

Garbet, X. ^{[1
]}

Nardon, E. ^{[2
]}

Howell, D. ^{[2
]}

Garofalo, A. ^{[3
]}

Schaffer, M. ^{[3
]}

Evans, T. ^{[3
]}

Shaing, K. ^{[4
,5
,6
]}

Cole, A. ^{[4
]}

Park, J. -K. ^{[7
]}

Cahyna, P. ^{[8
]}

机构：

[1] IRFM, CEA, F-13108 St Paul Les Durance, France

[2] Culham Sci Ctr, Euratom UKAEA Fus Assoc, Abingdon OX14 3DB, Oxon, England

[3] Gen Atom Co, San Diego, CA 92186 USA

[4] Univ Wisconsin, Madison, WI 53706 USA

[5] Natl Cheng Kung Univ, Plasma & Space Sci Ctr, Tainan 70101, Taiwan

[6] Natl Cheng Kung Univ, Dept Phys, Tainan 70101, Taiwan

[7] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[8] ASCR, Vvi, Assoc EURATOM IPPCR, Inst Plasma Phys, Prague 18200, Czech Republic

来源：

NUCLEAR FUSION | 2009年 / 49卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

TOROIDAL-MOMENTUM DISSIPATION; ERROR-FIELD; PLASMA;

D O I：

10.1088/0029-5515/49/8/085011

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：

Non-linear reduced MHD modelling of the toroidally rotating plasma response to resonant magnetic perturbations (RMPs) is presented for DIII-D and ITER-like typical parameter and RMP coils. The non-linear cylindrical reduced MHD code was adapted to take into account toroidal rotation and plasma braking mechanisms such as resonant one (similar to j x B) and the neoclassical toroidal viscosity (NTV) calculated for low collisionality regimes ('1/nu' and 'nu'). Counter toroidal rotation by NTV is predicted for ITER with the proposed RMP coils in 1/nu-limit. Resonant braking is localized near resonant surfaces and is weak compared with NTV in the 1/nu regime for typical DIII-D and ITER parameters. Toroidal rotation leads to the effective screening of RMPs that is larger for stronger rotation and lower resistivity, resulting mainly in central islands screening. Non-resonant helical harmonics (q not equal m/n) in RMP spectrum are not influenced by plasma rotation, and hence penetrate and are important in NTV mechanism.

引用

页数：13

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