Effects of sheared flow on microinstabilities and transport in plasmas

被引:0
|
作者
Sanuki, H [1 ]
Itoh, K
Fujisawa, A
Dong, JQ
机构
[1] Natl Inst Fus Sci, Gifu 5095292, Japan
[2] SW Inst Phys, Chengdu 610041, Peoples R China
关键词
sheared flow; microinstabilities; transport; bumpy tori; heliotron;
D O I
10.1088/1009-0630/7/1/002
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
Theoretical and experimental studies associated with electric field effects on the stability and transport are briefly surveyed. The effects of radial electric field on the suppression and/or enhancement of various microinstabilities such as drift waves, flute mode and temperature gradient modes are discussed. The suppression of flow shear on the electron temperature gradient mode in plasmas with slightly hollow density profiles is investigated by solving the gyrokinetic integral eigenvalue equation. Comparison between theoretical predictions and experimental observations based on the HIBP measurements with high temporal and spatial resolutions is made in bumpy tori and heliotron (CHS) devices.
引用
收藏
页码:2610 / 2614
页数:5
相关论文
共 50 条
  • [21] Sheared poloidal flow driven by mode conversion in tokamak plasmas
    Jaeger, EF
    Berry, LA
    Myra, JR
    Batchelor, DB
    D'Azevedo, E
    Bonoli, PT
    Phillips, CK
    Smithe, DN
    D'Ippolito, DA
    Carter, MD
    Dumont, RJ
    Wright, JC
    Harvey, RW
    PHYSICAL REVIEW LETTERS, 2003, 90 (19)
  • [22] Sheared flow amplification by vacuum magnetic islands in stellarator plasmas
    Garcia, L
    Carreras, BA
    Lynch, VE
    Pedrosa, MA
    Hidalgo, C
    PHYSICS OF PLASMAS, 2001, 8 (09) : 4111 - 4119
  • [23] Bistable turbulence in strongly magnetised plasmas with a sheared mean flow
    Christen, Nicolas
    Barnes, M.
    Hardman, M. R.
    Schekochihin, A. A.
    JOURNAL OF PLASMA PHYSICS, 2022, 88 (05)
  • [24] MODERATE BETA-EFFECTS ON MICROINSTABILITIES IN FINITE, MIRROR-CONFINED PLASMAS
    BEASLEY, CO
    CALLEN, JD
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1972, 17 (11): : 1034 - 1034
  • [25] Nonlocal stability analysis of microinstabilities in inhomogeneous plasmas
    Sanuki, Heiji
    Gao, Zhe
    Dong, J. Q.
    JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2006, 49 : S418 - S422
  • [26] ELECTROMAGNETIC MICROINSTABILITIES OF PLASMAS IN A UNIFORM MAGNETIC INDUCTION
    HAMASAKI, S
    PHYSICS OF FLUIDS, 1968, 11 (12) : 2724 - &
  • [27] Fluctuations, sheared radial electric fields and transport interplay in fusion plasmas
    Hidalgo, C
    Pedrosa, MA
    Goncalves, B
    NEW JOURNAL OF PHYSICS, 2002, 4 : 51.1 - 51.12
  • [28] LONG-WAVELENGTH MICROINSTABILITIES IN TOROIDAL PLASMAS
    TANG, WM
    REWOLDT, G
    PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1993, 5 (07): : 2451 - 2459
  • [29] Local gyrokinetic study of electrostatic microinstabilities in dipole plasmas
    Xie, Hua-sheng
    Zhang, Yi
    Huang, Zi-cong
    Ou, Wei-ke
    Li, Bo
    PHYSICS OF PLASMAS, 2017, 24 (12)
  • [30] Sheared-flow-driven electrostatic waves in laboratory and space plasmas
    Koepke, Mark E.
    PHYSICA SCRIPTA, 2004, T107 : 182 - 187