Comparison of Velocity Shear with Turbulence Reduction Driven by Biasing in a Simple Cylindrical Slab Plasma

被引：0
|
作者：
K.W.GENTLE
K.LIAO
K.LEE
W.L.ROWAN
机构：
[1] InstituteofFusionStudies,UniversityofTexasatAustin
来源：
Plasma Science and Technology | 2010年 / 04期
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
<正> In an experimental realization of the sheared cylindrical slab, the level of plasmaturbulence is strongly reduced by application of a sufficient bias potential difference in the radialdirection. Density fluctuation levels Δnrms/n decrease by more than a factor of five. The ionflow velocity profile is measured spectroscopically from the Doppler shift of an argon ion line.Comparison of the shearing rates with the turbulent amplitudes as a function of bias show norelation between the shearing rate and turbulence reduction, contrary to expectations.
引用
收藏
页码：391 / 396
页数：6
相关论文
共 42 条
  • [21] Effect of the externally driven velocity shear on the turbulence radial wavenumber spectral shift and its amplitude
    Xiao, G. L.
    Zou, X. L.
    Zhong, W. L.
    Song, S. D.
    Liang, A. S.
    Liu, A. D.
    Xu, M.
    Duan, X. R.
    [J]. PHYSICS OF PLASMAS, 2019, 26 (07)
  • [22] Computations of shear driven vortex flow in a cylindrical cavity using a modified k-ε turbulence model
    Saqr, Khalid M.
    Aly, Hossam S.
    Kassem, Hassan I.
    Sies, Mohsin M.
    Wahid, Mazlan A.
    [J]. INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2010, 37 (08) : 1072 - 1077
  • [23] ELECTRON-ION HYBRID INSTABILITIES DRIVEN BY VELOCITY SHEAR IN A MAGNETIZED PLASMA
    ROMERO, H
    GANGULI, G
    LEE, YC
    PALMADESSO, PJ
    [J]. PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1992, 4 (07): : 1708 - 1723
  • [24] Plasma turbulence driven by transversely large-scale standing shear Alfven waves
    Singh, Nagendra
    Rao, Sathyanarayan
    [J]. PHYSICS OF PLASMAS, 2012, 19 (12)
  • [25] Numerical simulation of plasma edge turbulence due to E x B flow velocity shear
    Shoucri, M
    [J]. CZECHOSLOVAK JOURNAL OF PHYSICS, 2001, 51 (10) : 1139 - 1151
  • [26] Fluctuating loads on a tidal turbine due to velocity shear and turbulence: Comparison of CFD with field data
    Ahmed, U.
    Apsley, D. D.
    Afgan, I.
    Stallard, T.
    Stansby, P. K.
    [J]. RENEWABLE ENERGY, 2017, 112 : 235 - 246
  • [27] Dust velocity shear driven rotational waves and associated vortices in a nonuniform dusty plasma
    Shukla, PK
    Stenflo, L
    [J]. PHYSICS LETTERS A, 2006, 352 (1-2) : 138 - 140
  • [28] Linear analysis of plasma pressure-driven mode in reversed shear cylindrical tokamak plasmas
    Zhang, Ding-Zong
    Feng, Xu-Ming
    Ma, Jun
    Guo, Wen-Feng
    Huang, Yan-Qing
    Liu, Hong-Bo
    [J]. CHINESE PHYSICS B, 2023, 32 (01)
  • [29] Linear analysis of plasma pressure-driven mode in reversed shear cylindrical tokamak plasmas
    张定宗
    冯旭铭
    马骏
    郭文峰
    黄艳清
    刘洪波
    [J]. Chinese Physics B, 2023, 32 (01) : 449 - 454
  • [30] Laser induced fluorescence measurements of axial velocity, velocity shear, and parallel ion temperature profiles during the route to plasma turbulence in a linear magnetized plasma device
    Thakur, S. Chakraborty
    Adriany, K.
    Gosselin, J. J.
    McKee, J.
    Scime, E. E.
    Sears, S. H.
    Tynan, G. R.
    [J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2016, 87 (11):
12345