...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nuclear fusion >Mesoscale electric fluctuations interacting with zonal flows, magnetic fluctuations and turbulence
【24h】

Mesoscale electric fluctuations interacting with zonal flows, magnetic fluctuations and turbulence

机译：中尺度电波动与地层流，磁波动和湍流相互作用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

New mesoscale electric fluctuations (MSEFs) are identified in the edge plasmas of the HL-2A tokamak using multiple Langmuir probe arrays. The MSEFs, resulting from the synchronization and having components of dominant geodesic acoustic mode (GAM) and mln = 6/2 potential fluctuations, are found at the same frequency as that of the magnetic fluctuations of mln = 6/2 (m and n are poloidal and toroidal mode numbers, respectively). The temporal evolutions of the MSEFs and the magnetic fluctuations clearly show the frequency entrainment and the phase lock between the GAM and the mln = 6/2 magnetic fluctuations. The results indicate that GAMs and magnetic fluctuations can transfer energy through nonlinear synchronization. The nonlinear coupling analyses show that the MSEFs couple to turbulence and low frequency zonal flows (LFZFs). This suggests that the MSEFs may contribute to the LFZF formation, reduction of turbulence level, and thus confinement regime transitions. The analysis of the envelope modulation demonstrates that both the MSEFs and the LFZFs modulate the turbulence while the MSEFs are modulated by the LFZFs.
机译：使用多个Langmuir探针阵列在HL-2A托卡马克的边缘等离子体中发现了新的中尺度电波动（MSEF）。通过同步得到的MSEF具有大地测地声模（GAM）和mln = 6/2电位波动的分量，其发现频率与mln = 6/2的磁波动的频率相同（m和n为极数和环形模数）。 MSEF和磁波动的时间演变清楚地表明了GAM和mln = 6/2磁波动之间的频率夹带和锁相。结果表明，GAM和磁涨落可以通过非线性同步传递能量。非线性耦合分析表明，MSEF与湍流和低频纬向流（LFZF）耦合。这表明MSEF可能有助于LFZF的形成，湍流水平的降低，从而限制了制度的过渡。包络调制的分析表明，MSEF和LFZF均调制湍流，而MSEF被LFZF调制。

著录项

  • 来源
    《Nuclear fusion》 |2017年第7期|1-8|共8页
  • 作者

    KJ. Zhao; Y. Nagashima; P.H. Diamond; J.Q. Dong; K. Itoh; S.-l. Itoh; L.W. Yan; J. Cheng; A. Fujisawa; S. Inagaki; Y. Kosuga; M. Sasaki; Z.H. Huang; D.L Yu; Q. Li; X.Q. Ji; X.M. Song; Huang; Yi. Liu; Q.W. Yang; X.T. Ding; X.R. Duan; HL-2A team;

  • 作者单位

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Research Institute for Applied mechanics, Kyushu University, Kasuga, Kasuga koen 6-1, 816-8580, Japan;

    Center for Momentum Transport and Flow Organization, University of California at San Diego, CA 92093, United States of America;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China,Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou, 310027, People's Republic of China;

    National Institute for Fusion Science, Toki 509-5292, Japan,Institute of Science and Technology Research, Chubu University, Kasugai, Aichi, 487-8501 Japan;

    Research Institute for Applied mechanics, Kyushu University, Kasuga, Kasuga koen 6-1, 816-8580, Japan;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Research Institute for Applied mechanics, Kyushu University, Kasuga, Kasuga koen 6-1, 816-8580, Japan;

    Research Institute for Applied mechanics, Kyushu University, Kasuga, Kasuga koen 6-1, 816-8580, Japan;

    Research Institute for Applied mechanics, Kyushu University, Kasuga, Kasuga koen 6-1, 816-8580, Japan;

    Research Institute for Applied mechanics, Kyushu University, Kasuga, Kasuga koen 6-1, 816-8580, Japan;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

    Southwestern Institute of Physics, PO Box 432, Chengdu, 610041, People's Republic of China;

  • 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

    magnetic fluctuations; turbulence; zonal flows; mesoscale electric fluctuations; nonlinear synchronization;

    机译：磁波动;湍流地带流量中尺度电波动;非线性同步;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号