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

被引：0
|
作者：
K.W.GENTLE [1 ]
K.LIAO [1 ]
K.LEE [1 ]
W.L.ROWAN [1 ]
机构：
[1] Institute of Fusion Studies, University of Texas at Austin
来源：
Plasma Science and Technology | 2010年 / 12卷 / 04期
关键词：
turbulence suppression; shear stabilization; velocity shear; bias;
D O I：
暂无
中图分类号：
TL612 [];
学科分类号：
082701 ;
摘要：
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
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  • [1] Comparison of Velocity Shear with Turbulence Reduction Driven by Biasing in a Simple Cylindrical Slab Plasma
    K.W.GENTLE
    K.LIAO
    K.LEE
    W.L.ROWAN
    [J]. Plasma Science and Technology, 2010, (04) : 391 - 396
  • [2] Comparison of Velocity Shear with Turbulence Reduction Driven by Biasing in a Simple Cylindrical Slab Plasm
    Gentle, K. W.
    Liao, K.
    Lee, K.
    Rowan, W. L.
    [J]. PLASMA SCIENCE & TECHNOLOGY, 2010, 12 (04) : 391 - 396
  • [3] OBSERVATIONS OF VELOCITY SHEAR DRIVEN PLASMA TURBULENCE
    KINTNER, PM
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1976, 81 (28): : 5114 - 5122
  • [4] RESISTIVE DRIFT WAVE AND INTERCHANGE TURBULENCE IN A CYLINDRICAL PLASMA WITH MAGNETIC AND VELOCITY SHEAR
    WAKATANI, M
    WATANABE, K
    SUGAMA, H
    HASEGAWA, A
    [J]. PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1992, 4 (07): : 1754 - 1765
  • [5] Scaling of plasma turbulence suppression with velocity shear
    Boedo, JA
    Gray, DS
    Terry, PW
    Jachmich, S
    Tynan, GR
    Conn, RW
    [J]. NUCLEAR FUSION, 2002, 42 (02) : 117 - 121
  • [6] Turbulent transport reduction by E x B velocity shear during edge plasma biasing:: recent experimental results
    Van Oost, G
    Adámek, J
    Antoni, V
    Balan, P
    Boedo, JA
    Devynck, P
    Duran, I
    Eliseev, L
    Gunn, JP
    Hron, M
    Ionita, C
    Jachmich, S
    Kirnev, GS
    Martines, E
    Melnikov, A
    Schrittwieser, R
    Silva, C
    Stöckel, J
    Tendler, M
    Varandas, C
    Van Schoor, M
    Vershkov, V
    Weynants, RR
    [J]. PLASMA PHYSICS AND CONTROLLED FUSION, 2003, 45 (05) : 621 - 643
  • [7] Magnetic and Velocity Shear Driven Instabilities in the Heliospheric Plasma
    L. Bettarini
    S. Landi
    M. Velli
    P. Londrillo
    [J]. Earth, Moon, and Planets, 2009, 104 : 135 - 137
  • [8] Magnetic and Velocity Shear Driven Instabilities in the Heliospheric Plasma
    Bettarini, L.
    Landi, S.
    Velli, M.
    Londrillo, P.
    [J]. EARTH MOON AND PLANETS, 2009, 104 (1-4) : 135 - 137
  • [9] Shear flow and drift wave turbulence dynamics in a cylindrical plasma device
    Yan, Z.
    Tynan, G. R.
    Holland, C.
    Xu, M.
    Mueller, S. H.
    Yu, J. H.
    [J]. PHYSICS OF PLASMAS, 2010, 17 (03)
  • [10] Turbulence-driven transport and the E x B velocity shear in the edge plasma of the TF-2 tokamak
    Budaev, VP
    [J]. PLASMA PHYSICS REPORTS, 1999, 25 (08) : 610 - 615
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