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Effect of turbulence on electron cyclotron current drive and heating in ITER

机译:湍流对ITER中电子回旋电流驱动和加热的影响

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摘要

Non-linear local electromagnetic gyrokinetic turbulence simulations of the ITER standard scenario H-mode are presented for the q = 3/2 and q = 2 surfaces. The turbulent transport is examined in regions of velocity space characteristic of electrons heated by electron-cyclotron waves. Electromagnetic fluctuations and sub-dominant micro-tearing modes are found to contribute significantly to the transport of the accelerated electrons, even though they have only a small impact on the transport of the bulk species. The particle diffusivity for resonant passing electrons is found to be less than 0.15 m~2 s~(-1), and their heat conductivity is found to be less than 2 m~2 s~(-1). Implications for the broadening of the current drive and energy deposition in ITER are discussed.
机译:针对q = 3/2和q = 2的表面,提出了ITER标准情景H模式的非线性局部电磁动力动力学湍流仿真。在由电子回旋波加热的电子的速度空间特征区域中检查湍流传输。发现电磁波动和次要的微撕裂模式对加速电子的传输有显着贡献,尽管它们对散装物种的传输影响很小。发现共振通过电子的粒子扩散率小于0.15 m〜2 s〜(-1),导热系数小于2 m〜2 s〜(-1)。讨论了在ITER中拓宽电流驱动和能量沉积的含义。

著录项

  • 来源
    《Nuclear fusion》 |2015年第1期|012002.1-012002.5|共5页
  • 作者单位

    Max-Planck-Institut fuer Plasmaphysik, D-85748, Garching, Germany,CCFE, Culham Science Centre, Abingdon, Oxon, OX14 3DB, UK;

    Max-Planck-Institut fuer Plasmaphysik, D-85748, Garching, Germany;

    Max-Planck-Institut fuer Plasmaphysik, D-85748, Garching, Germany;

    Department of Physics, Universitaet Bayreuth, D-95447, Bayreuth, Germany;

    Department of Physics, Universitaet Bayreuth, D-95447, Bayreuth, Germany;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    turbulence; ECCD; NTM; micro-tearing; transport; ITER; gyrokinetic;

    机译:湍流ECCD;NTM;微撕裂运输;ITER;陀螺动力学;

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