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首页> 外文期刊>Nuclear fusion >Recent progress in the quantitative validation of JOREK simulations of ELMs in JET
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Recent progress in the quantitative validation of JOREK simulations of ELMs in JET

机译：JET ELM的JOREK模拟定量验证的最新进展

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摘要

Future devices like JT-60SA, ITER and DEMO require quantitative predictions of pedestal density and temperature levels, as well as inter-ELM and ELM divertor heat fluxes, in order to improve global confinement capabilities while preventing divertor erosion/melting in the planning of future experiments. Such predictions can be obtained from dedicated pedestal models like EPED, and from non-linear MHD codes like JOREK, for which systematic validation against current experiments is necessary. In this paper, we show progress in the quantitative validation of the JOREK code using JET simulations. Results analyse the impact of diamagnetic terms on the dynamics and size of the ELMs, and evidence is provided that the onset of type-I ELMs is not governed by linear MHD stability alone, but that a nonlinear threshold could be responsible for large MHD events at the plasma edge.
机译：诸如JT-60SA，ITER和DEMO之类的未来设备需要对基座密度和温度水平以及ELM和ELM偏滤器之间的热通量进行定量预测，以便提高整体约束能力，同时在将来的规划中防止偏滤器腐蚀/熔化实验。可以从专用基座模型（如EPED）和非线性MHD代码（如JOREK）获得此类预测，为此必须针对当前实验进行系统验证。在本文中，我们展示了使用JET模拟对JOREK代码进行定量验证的进展。结果分析了反磁性项对ELM的动力学和大小的影响，并提供了证据表明I型ELM的发作不仅仅受线性MHD稳定性支配，而是非线性阈值可能是导致MHD事件发生的原因。等离子边缘。

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  • 来源
    《Nuclear fusion》 |2017年第7期|1-11|共11页
  • 作者

    S.J.P. Pamela; G.T.A. Huijsmans; T. Eich; S. Saarelma; I. Lupelli; C.F. Maggi; C. Giroud; I.T. Chapman; S.F. Smith; L. Frassinetti; M. Becoulet; M. Hoelzl; F. Orain; S. Futatani; JET Contributors;

  • 作者单位

    CCFE, Culham Science Centre, Abingdon, Oxon, OX14 3DB, United Kingdom;

    CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France,Eindhoven University of Technology, Eindhoven, Netherlands;

    Max-Planck-Institut fuer Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching bei Muenchen, Germany;

    CCFE, Culham Science Centre, Abingdon, Oxon, OX14 3DB, United Kingdom;

    CCFE, Culham Science Centre, Abingdon, Oxon, OX14 3DB, United Kingdom;

    CCFE, Culham Science Centre, Abingdon, Oxon, OX14 3DB, United Kingdom;

    CCFE, Culham Science Centre, Abingdon, Oxon, OX14 3DB, United Kingdom;

    CCFE, Culham Science Centre, Abingdon, Oxon, OX14 3DB, United Kingdom;

    CCFE, Culham Science Centre, Abingdon, Oxon, OX14 3DB, United Kingdom,Department of Physics, York Plasma Institute, University of York, Heslington, York YO10 5DD, United Kingdom;

    Division of Fusion Plasma Physics, KTH Royal Institute of Technology, Stockholm SE, Sweden;

    CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France;

    Max-Planck-Institut fuer Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching bei Muenchen, Germany;

    Max-Planck-Institut fuer Plasmaphysik, Boltzmannstrasse 2, D-85748 Garching bei Muenchen, Germany;

    CASE Department, Barcelona Supercomputing Center, Barcelona, Spain;

  • 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

    JET-ILW; ELM; pedestal; MHD; peeling ballooning modes; JOREK; simulations;

    机译：JET-ILW;榆树;基座MHD;脱皮膨胀模式;乔克模拟;

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