Tearing mode velocity braking due to resonant magnetic perturbations

被引：19
|
作者：
Frassinetti, L. [1 ]
Menmuir, S. [1 ]
Olofsson, K. E. J. [1 ]
Brunsell, P. R. [1 ]
Drake, J. R. [1 ]
机构：
[1] Royal Inst Technol KTH, Sch Elect Engn, Div Fus Plasma Phys, Assoc EURATOM VR, SE-10044 Stockholm, Sweden
来源：
NUCLEAR FUSION | 2012年 / 52卷 / 10期
关键词：
REVERSED-FIELD PINCH; TOROIDAL PINCH; DYNAMICS;
D O I：
10.1088/0029-5515/52/10/103014
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 effect of resonant magnetic perturbations (RMPs) on the tearing mode (TM) velocity is studied in EXTRAP T2R. Experimental results show that the RMP produces TM braking until a new steady velocity or wall locking is reached. The braking is initially localized at the TM resonance and then spreads to the other TMs and to the rest of the plasma producing a global velocity reduction via the viscous torque. The process has been used to experimentally estimate the kinematic viscosity profile, in the range 2-40 m(2) s(-1), and the electromagnetic torque produced by the RMP, which is strongly localized at the TM resonance. Experimental results are then compared with a theoretical model which gives a reasonable qualitative explanation of the entire process.
引用
收藏
页数：10
相关论文
共 50 条
  • [21] Effects of resonant magnetic perturbation on the triggering and the evolution of double-tearing mode
    Wang, L.
    Lin, W. B.
    Wang, X. Q.
    EPL, 2018, 121 (04)
  • [22] Neoclassical transport due to resonant magnetic perturbations in DIII-D
    Sinha, Priyanjana
    Ferraro, Nathaniel M.
    Belli, Emily
    NUCLEAR FUSION, 2022, 62 (12)
  • [23] Footprint structures due to resonant magnetic perturbations in DIII-D
    Wingen, A.
    Evans, T. E.
    Spatschek, K. H.
    PHYSICS OF PLASMAS, 2009, 16 (04)
  • [24] Mode locking and island suppression by resonant magnetic perturbations in Rutherford regime
    Huang, Wenlong
    Zhu, Ping
    PHYSICS OF PLASMAS, 2015, 22 (03)
  • [25] Localizing resonant magnetic perturbations for edge localized mode control in KSTAR
    Yang, S. M.
    Park, J-K
    Logan, N. C.
    Zhu, C.
    Hu, Q.
    Jeon, Y. M.
    In, Y.
    Ko, W. H.
    Kim, S. K.
    Lee, Y. H.
    Na, Y. S.
    NUCLEAR FUSION, 2020, 60 (09)
  • [26] Braking of tearing mode rotation by ferromagnetic conducting walls in tokamaks
    Fitzpatrick, Richard
    PHYSICS OF PLASMAS, 2015, 22 (09)
  • [27] Effect of the toroidal flow shear on the m/n=2/1 tearing mode by using the rotating resonant magnetic perturbations in the J-TEXT Tokamak
    Jia, Ruo
    Li, Da
    Ding, Yonghua
    Ren, Zhengkang
    Wang, Nengchao
    Mao, Feiyue
    He, Ying
    PLASMA PHYSICS AND CONTROLLED FUSION, 2023, 65 (05)
  • [28] Enhanced fast ion prompt loss due to resonant magnetic perturbations in KSTAR
    Kim, Kimin
    Jhang, Hogun
    Kim, Junghee
    Rhee, T.
    PHYSICS OF PLASMAS, 2018, 25 (12)
  • [29] Towards understanding edge localised mode mitigation by resonant magnetic perturbations in MAST
    Chapman, I. T.
    Kirk, A.
    Ham, C. J.
    Harrison, J. R.
    Liu, Y. Q.
    Saarelma, S.
    Scannell, R.
    Thornton, A. J.
    Becoulet, M.
    Orain, F.
    Cooper, W. A.
    Pamela, S.
    PHYSICS OF PLASMAS, 2013, 20 (05)
  • [30] Impurity transport in the pedestal of H-mode plasmas with resonant magnetic perturbations
    Victor, B. S.
    Odstrcil, T.
    Paz-Soldan, C. A.
    Grierson, B. A.
    Hinson, E.
    Jarvinen, A.
    Hollmann, E. M.
    Chrystal, C.
    Collins, C. S.
    Thome, K. E.
    Allen, S. L.
    PLASMA PHYSICS AND CONTROLLED FUSION, 2020, 62 (09)
12345