...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nuclear fusion >Thermoelectric currents and their role during ELM formation in JET
【24h】

Thermoelectric currents and their role during ELM formation in JET

机译：JET中ELM形成过程中的热电流及其作用

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

A recently developed numerical model, describing a self-amplification and structure formation process which is used to model the initial non-linear growth phase of edge-localized modes (ELMs), is applied to the JET tokamak. Connection length simulations of the magnetic topology, including only error fields, for JET reveal the existence of small, so-called short connection length flux tubes. Such a configuration is used as the starting point for the model. Thermoelectric currents are assumed to flow in the short connection length flux tubes and add additional magnetic perturbations which change the magnetic topology severely. The change in magnetic topology leads to the formation of new, much larger short connection length flux tubes that can conduct much larger currents through the plasma edge. The current density inside the flux tubes is assumed to be constant to calculate the total current. This self-amplification process leads to the formation of patterns, known as footprints, on various segments of the inner wall throughout the vessel. The resulting footprints and their relation to the observed ELM patterns during discharges are discussed.
机译：最近开发的数值模型描述了自我放大和结构形成过程，该过程用于对边缘定位模式（ELM）的初始非线性生长阶段进行建模，并应用于JET托卡马克。对JET进行的仅包括误差场的磁拓扑结构的连接长度模拟显示出存在小的，所谓的短连接长度磁通管。这样的配置用作模型的起点。假设热电流在连接长度较短的通量管中流动，并增加了额外的磁扰动，从而严重改变了磁拓扑。磁性拓扑的变化导致形成了新的，更大的短连接长度的通量管，该通量管可以通过等离子体边缘传导更大的电流。假设通量管内部的电流密度恒定，以计算总电流。这种自放大过程导致在整个容器的内壁各段上形成称为足迹的图案。讨论了在放电过程中产生的足迹及其与观察到的ELM模式的关系。

著录项

  • 来源
    《Nuclear fusion》 |2012年第7期|p.074012.1-074012.7|共7页
  • 作者

    M. Rack; A. Wingen; Y. Liang; K.H. Spatschek; D.M. Harting; S. Devaux;

  • 作者单位

    JET-EFDA, Culham Science Centre, 0X14 3DB, Abingdon, UK Institute of Theoretical Physics I, University of Duesseldorf, D-40225 Duesseldorf, Germany Institute of Energy and Climate Research/Plasma Physics, Forschungszentrum Juelich GmbH, Association EURATOM-FZJ, Partner in the Trilateral Euregio Cluster, D-52425 Juelich, Germany;

    JET-EFDA, Culham Science Centre, 0X14 3DB, Abingdon, UK Institute of Theoretical Physics I, University of Duesseldorf, D-40225 Duesseldorf, Germany;

    JET-EFDA, Culham Science Centre, 0X14 3DB, Abingdon, UK Institute of Energy and Climate Research/Plasma Physics, Forschungszentrum Juelich GmbH, Association EURATOM-FZJ, Partner in the Trilateral Euregio Cluster, D-52425 Juelich, Germany;

    JET-EFDA, Culham Science Centre, 0X14 3DB, Abingdon, UK Institute of Theoretical Physics I, University of Duesseldorf, D-40225 Duesseldorf, Germany;

    JET-EFDA, Culham Science Centre, 0X14 3DB, Abingdon, UK Institute of Energy and Climate Research/Plasma Physics, Forschungszentrum Juelich GmbH, Association EURATOM-FZJ, Partner in the Trilateral Euregio Cluster, D-52425 Juelich, Germany;

    JET-EFDA, Culham Science Centre, 0X14 3DB, Abingdon, UK Max-Planck-Institut fuer Plasmaphysik, EURATOM-Association, D-85748 Garching, 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

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