The long wavelength behaviour of ion-temperature-gradient-driven turbulence and the radial dependence of the turbulent ion conductivity

被引:28
作者
Ottaviani, M
Horton, W
Erba, M
机构
[1] UNIV TEXAS, INST FUS STUDIES, AUSTIN, TX 78712 USA
[2] SPPF CADARACHE, DRFC, CEA, EURATOM ASSOC, F-13108 ST PAUL LES DURANCE, FRANCE
关键词
D O I
10.1088/0741-3335/39/9/012
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
In this work a new model of the ion thermal transport, based on the long wavelength behaviour of the ion-temperature-gradient-driven turbulence, is introduced. A relevant property of the model is that the thermal conductivities grow with minor radius, as a consequence of the positive dependence of the correlation length and of the inverse of the correlation time on the ion temperature gradient. The model is assessed by comparing the predicted profiles of temperature and effective conductivity with the experimental profiles of several machines.
引用
收藏
页码:1461 / 1477
页数:17
相关论文
共 50 条
  • [41] Ion temperature gradient driven turbulence with strong trapped ion resonance
    Kosuga, Y.
    Itoh, S-I.
    Diamond, P. H.
    Itoh, K.
    Lesur, M.
    PHYSICS OF PLASMAS, 2014, 21 (10)
  • [42] Global gyrokinetic simulation of ion-temperature-gradient-driven instabilities using particles
    Tran, TM
    Appert, K
    Fivaz, M
    Jost, G
    Vaclavik, J
    Villard, L
    THEORY OF FUSION PLASMAS, 1999, 18 : 45 - 58
  • [43] Ion-Temperature-Gradient-Driven Modes with Nonthermal Electron Distributions in Bi-ion Dusty Magnetoplasma
    Javaria Razzaq
    Shahida Qamar-ul-Haque
    Arshad M. Nargis
    Brazilian Journal of Physics, 2017, 47 : 302 - 309
  • [44] Ion-Temperature-Gradient-Driven Modes with Nonthermal Electron Distributions in Bi-ion Dusty Magnetoplasma
    Razzaq, Javaria
    Qamar-ul-Haque
    Nargis, Shahida
    Mirza, Arshad M.
    BRAZILIAN JOURNAL OF PHYSICS, 2017, 47 (03) : 302 - 309
  • [45] STABILITY OF ION-TEMPERATURE-GRADIENT-DRIVEN MODES IN THE PRESENCE OF SHEARED POLOIDAL FLOWS
    WANG, XH
    DIAMOND, PH
    ROSENBLUTH, MN
    PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1992, 4 (08): : 2402 - 2413
  • [46] Plasma beta dependence of ion temperature gradient driven turbulence influenced by Shafranov shift
    Niiro, M.
    Ishizawa, A.
    Nakamura, Y.
    Maeyama, S.
    Watanabe, T-H
    PLASMA PHYSICS AND CONTROLLED FUSION, 2023, 65 (06)
  • [47] STABILITY ANALYSIS OF THE ION-TEMPERATURE-GRADIENT-DRIVEN MODE IN NONCIRCULAR TOKAMAK GEOMETRY
    GUO, SC
    ROMANELLI, F
    PHYSICS OF PLASMAS, 1994, 1 (05) : 1101 - 1104
  • [48] NONLINEAR ION-TEMPERATURE-GRADIENT-DRIVEN INSTABILITY IN LOW-COLLISIONALITY PLASMAS
    BIGLARI, H
    DIAMOND, PH
    TERRY, PW
    PHYSICAL REVIEW LETTERS, 1988, 60 (03) : 200 - 203
  • [49] Stabilization of ion-temperature-gradient-driven tokamak modes by magnetic-field gradient reversal
    Fivaz, M
    Tran, TM
    Appert, K
    Vaclavik, J
    Parker, SE
    PHYSICAL REVIEW LETTERS, 1997, 78 (18) : 3471 - 3474
  • [50] Magnetic compressibility and ion-temperature-gradient-driven microinstabilities in magnetically confined plasmas
    Zocco, A.
    Helander, P.
    Connor, J. W.
    PLASMA PHYSICS AND CONTROLLED FUSION, 2015, 57 (08)