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首页> 外文期刊>Nuclear fusion >M3D-C1 simulations of the plasma response to RMPs in NSTX-U single-null and snowflake divertor configurations
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M3D-C1 simulations of the plasma response to RMPs in NSTX-U single-null and snowflake divertor configurations

机译：M3D-C1模拟NSTX-U单零星和雪花分流器配置中对RMP的等离子体响应

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摘要

In this work, single- and two-fluid resistive magnetohydrodynamic calculations of the plasma response to n = 3 magnetic perturbations in single-null (SN) and snowflake (SF) divertor configurations are compared with those based on the vacuum approach. The calculations are performed using the code M3D-C~1 and are based on simulated NSTX-U plasmas. Significantly different plasma responses were found from these calculations, with the difference between the single- and two-fluid plasma responses being caused mainly by the different screening mechanism intrinsic to each of these models. Although different plasma responses were obtained from these different plasma models, no significant difference between the SN and SF plasma responses were found. However, due to their different equilibrium properties, magnetic perturbations cause the SF configuration to develop additional and longer magnetic lobes in the null-point region than the SN, regardless of the plasma model used. The intersection of these longer and additional lobes with the divertor plates are expected to cause more striations in the particle and heat flux target profiles. In addition, the results indicate that the size of the magnetic lobes, in both single-null and snowflake configurations, are more sensitive to resonant magnetic perturbations than to non-resonant magnetic perturbations.
机译：在这项工作中，将单流体（SN）和雪花（SF）偏滤器配置中对n = 3磁扰动的等离子体响应的单流体和双流体电阻磁流体动力学计算与基于真空方法的计算进行了比较。计算是使用代码M3D-C〜1进行的，并且基于模拟的NSTX-U等离子体。从这些计算中发现血浆反应显着不同，单流体血浆反应和两流体血浆反应之间的差异主要是由这些模型各自固有的筛选机制引起的。尽管从这些不同的血浆模型获得了不同的血浆反应，但在SN和SF血浆反应之间没有发现显着差异。但是，由于它们的平衡特性不同，因此，与所使用的等离子体模型无关，磁扰动会导致SF配置在零点区域形成比SN更长的附加磁瓣。这些较长的叶片和附加叶片与分流板的相交处会导致粒子和热通量目标轮廓中出现更多条纹。另外，结果表明，在单零点和雪花配置中，磁瓣的大小对共振磁扰动比对非共振磁扰动更敏感。

著录项

  • 来源
    《Nuclear fusion》 |2017年第7期|1-12|共12页
  • 作者

    G.P. Canal; N.M. Ferraro; T.E. Evans; T.H. Osborne; J.E. Menard; J.-W. Ahn; R. Maingi; A. Wingen; D. Ciro; H. Frerichs; O. Schmitz; V. Soukhanoviskii; I. Waters; S.A. Sabbagh;

  • 作者单位

    General Atomics, PO Box 85608, San Diego, CA 92186-5608, United States of America,Oak Ridge Associated Universities, Oak Ridge, TN 37831, United States of America;

    Princeton Plasma Physics Laboratory, Princeton, NJ 08543-0451, United States of America;

    General Atomics, PO Box 85608, San Diego, CA 92186-5608, United States of America;

    General Atomics, PO Box 85608, San Diego, CA 92186-5608, United States of America;

    Princeton Plasma Physics Laboratory, Princeton, NJ 08543-0451, United States of America;

    Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States of America;

    Princeton Plasma Physics Laboratory, Princeton, NJ 08543-0451, United States of America;

    Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States of America;

    Department of Applied Physics, University of Sao Paulo, Sao Paulo, SP 05508-090, Brazil;

    Department of Engineering Physics, University of Wisconsin-Madison, Madison, WI 53706, United States of America;

    Department of Engineering Physics, University of Wisconsin-Madison, Madison, WI 53706, United States of America;

    Lawrence Livermore National Laboratory, Livermore, CA 94550, United States of America;

    Department of Engineering Physics, University of Wisconsin-Madison, Madison, WI 53706, United States of America;

    Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, United States of America;

  • 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

    snowflake divertor; RMP; plasma response; two-fluid MHD;

    机译：雪花偏滤器RMP;血浆反应二流体MHD;

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