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On plasma rotation with toroidal magnetic field ripple and no external momentum input

机译：在具有环形磁场波动且无外部动量输入的等离子体旋转中

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摘要

Ripple-induced thermal loss effect on plasma rotation is investigated in a set of Ohmic L-mode plasmas performed in Tore Supra, and comparisons with neoclassical predictions including ripple are performed. Adjusting the size of the plasma, the ripple amplitude has been varied from 0.5% to 5.5% at the plasma boundary, keeping the edge safety factor constant. The toroidal flow dynamics is understood as being likely dominated by turbulence transport driven processes at low ripple amplitude, while the ripple-induced toroidal friction becomes dominant at high ripple. In the latter case, the velocity tends remarkably towards the neoclassical prediction (counter-current rotation). The radial electric field is not affected by the ripple variation and remains well described by its neoclassical prediction. Finally, the poloidal velocity is of the order of the neoclassical prediction at high ripple amplitude, but significantly departs from it at low ripple.
机译：在Tore Supra中进行的一组欧姆L型等离子体研究了波纹引起的热损失对等离子体旋转的影响，并与包括波纹在内的新古典预测进行了比较。调整等离子的大小，在等离子边界处的波纹幅度已从0.5％更改为5.5％，从而使边缘安全系数保持恒定。环流动力学被认为是由低脉动振幅下的湍流输运驱动过程所主导，而在高脉动下，由脉动引起的环面摩擦则占主导地位。在后一种情况下，速度明显趋于新古典预测（逆流旋转）。径向电场不受纹波变化的影响，并通过其新古典预测得到很好的描述。最后，在高纹波幅度时极向速度约为新古典预测的速度，而在低纹波时极距速度明显偏离。

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  • 来源
    《Nuclear fusion》 |2011年第10期|p.103038.1-103038.10|共10页
  • 作者

    C. Fenzi; X. Garbet; E. Trier; P. Hennequin; C. Bourdelle; T. Aniel; G. Colledani; P. Devynck; C. Gil; Oe. Guercan; L. Manenc; M. Schneider; J.-L. Segui;

  • 作者单位

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

    Ecole Polytechnique, LPP, CNRS UMR7648, F-91128 Palaiseau cedex, France;

    Ecole Polytechnique, LPP, CNRS UMR7648, F-91128 Palaiseau cedex, France;

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

    Ecole Polytechnique, LPP, CNRS UMR7648, F-91128 Palaiseau cedex, France;

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

    CEA, IRFM, F-13108 St. Paul-lez-Durance, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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