Zonal Flow Dynamics and Control of Turbulent Transport in Stellarators

被引：34
|
作者：
Xanthopoulos, P. [1 ]
Mischchenko, A. [1 ]
Helander, P. [1 ]
Sugama, H. [2 ]
Watanabe, T. -H. [2 ]
机构：
[1] Max Planck Inst Plasma Phys, Teilinst Greifswald, D-17491 Greifswald, Germany
[2] Natl Inst Nat Sci, Natl Inst Fus Sci, Grad Univ Adv Studies, Toki, Gifu 5095292, Japan
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 24期
关键词：
TEMPERATURE-GRADIENT TURBULENCE; HELICAL SYSTEMS; DRIVEN;
D O I：
10.1103/PhysRevLett.107.245002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The relation between magnetic geometry and the level of ion-temperature-gradient (ITG) driven turbulence in stellarators is explored through gyrokinetic theory and direct linear and nonlinear simulations. It is found that the ITG radial heat flux is sensitive to details of the magnetic configuration that can be understood in terms of the linear behavior of zonal flows. The results throw light on the question of how the optimization of neoclassical confinement is related to the reduction of turbulence.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Optimizing Stellarators for Turbulent Transport
    Mynick, H. E.
    Pomphrey, N.
    Xanthopoulos, P.
    [J]. PHYSICAL REVIEW LETTERS, 2010, 105 (09)
  • [2] Zonal flow dynamics and anomalous transport
    White, R
    Chen, L
    Zonca, F
    [J]. PHYSICS OF PLASMAS, 2005, 12 (05)
  • [3] Effects of collisional zonal flow damping on turbulent transport
    Lin, Z
    Hahm, TS
    Lee, WW
    Tang, WM
    Diamond, PH
    [J]. PHYSICAL REVIEW LETTERS, 1999, 83 (18) : 3645 - 3648
  • [4] Coherent structure of zonal flow and onset of turbulent transport
    Itoh, K
    Hallatschek, K
    Itoh, SI
    Diamond, PH
    Toda, S
    [J]. PHYSICS OF PLASMAS, 2005, 12 (06) : 1 - 14
  • [5] Turbulent SOL transport in stellarators and tokamaks
    Endler, M
    [J]. JOURNAL OF NUCLEAR MATERIALS, 1999, 266 : 84 - 90
  • [6] On the nonlinear turbulent dynamics of shear-flow decorrelation and zonal flow generation
    Tynan, GR
    Moyer, RA
    Burin, MJ
    Holland, C
    [J]. PHYSICS OF PLASMAS, 2001, 8 (06) : 2691 - 2699
  • [7] Influence of zonal flow and density on resistive drift wave turbulent transport
    Zhang, Yanzeng
    Krasheninnikov, Sergei I.
    [J]. PHYSICS OF PLASMAS, 2020, 27 (12)
  • [8] Effects of light impurities on zonal flow activities and turbulent thermal transport
    Seo, Janghoon
    Jhang, Hogun
    Kwon, Jae-Min
    [J]. PHYSICS OF PLASMAS, 2022, 29 (05)
  • [9] Semianalytical calculation of the zonal-flow oscillation frequency in stellarators
    Monreal, Pedro
    Sanchez, Edilberto
    Calvo, Ivan
    Bustos, Andres
    Parra, Felix I.
    Mishchenko, Alexey
    Koenies, Axel
    Kleiber, Ralf
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2017, 59 (06)
  • [10] Stellarators Resist Turbulent Transport on the Electron Larmor Scale
    Plunk, G. G.
    Xanthopoulos, P.
    Weir, G. M.
    Bozhenkov, S. A.
    Dinklage, A.
    Fuchert, G.
    Geiger, J.
    Hirsch, M.
    Hoefel, U.
    Jakubowski, M.
    Langenberg, A.
    Pablant, N.
    Pasch, E.
    Stange, T.
    Zhang, D.
    [J]. PHYSICAL REVIEW LETTERS, 2019, 122 (03)
12345