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Flow structure and shear generation in the 3D SOL of a circular tokamak plasma in Aditya

机译：圆形托卡马克等离子体在Aditya中的3D SOL中的流动结构和剪切产生

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摘要

The presence of a poloidal ring limiter in the tokamak Aditya, which has a circular plasma, presents an interesting scrape-off layer (SOL) plasma configuration where small to large scale spatial variations of plasma parameters are expected. Flow shears in the Aditya SOL are routinely observed and their strong correlations with experimentally measured edge fluctuations in the floating potential and SOL currents/drifts have been thoroughly investigated in the recent past. The first implementation of the three-dimensional (3D) SOL plasma transport simulation code EMC3-EIRENE allows the possibility of investigating the SOL's complexity and associated short and long scale spatial patterns in the flow and plasma transport, and their impact on the confinement properties of the plasma in the edge region. A detailed investigation of the first results from the 3D plasma transport simulations shows interesting 3D flow patterns and the existence of resulting parallel and radial flow shears in the device's SOL. In this work the origin of these complex flow patterns is studied and their correlation with the observed behavior of the flows in the device is discussed.
机译：托卡马克·阿迪亚（Tokamak Aditya）中有倍数环限制剂，它具有圆形等离子体，呈现出有趣的刮除层（SOL）等离子体构型，其中等离子体参数的空间变化范围很小。常规观察到Aditya SOL中的流动剪切，并且最近对它们与浮力和SOL电流/漂移的实验测量边缘波动的强相关性进行了深入研究。三维（3D）SOL等离子体传输模拟代码EMC3-EIRENE的第一种实现方式使我们有可能调查SOL的复杂性以及相关的流动和等离子体传输中的短，长尺度空间模式，以及它们对封闭空间特性的影响。边缘区域中的等离子体。对3D等离子体传输模拟的第一个结果的详细研究表明，有趣的3D流动模式以及在设备的SOL中产生的平行和径向流动剪切的存在。在这项工作中，研究了这些复杂流型的起源，并讨论了它们与设备中流的观察行为之间的相关性。

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  • 来源
    《Nuclear fusion》 |2015年第6期|063042.1-063042.17|共17页
  • 作者

    Bibhu Prasad Sahoo; Devendra Sharma; Ratneshwar Jha; Yuehe Feng;

  • 作者单位

    Institute for Plasma Research, Bhat, Gandhinagar, 382428, India;

    Institute for Plasma Research, Bhat, Gandhinagar, 382428, India;

    Institute for Plasma Research, Bhat, Gandhinagar, 382428, India;

    Max-Planck-Institut fuer Plasmaphysik, Wendelsteinstr. 1, Greifswald, D-17491, 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

    scrape-off layer; 3D limiter plasma; Flow shear; pedestal physics; EMC3-EIRENE;

    机译：刮除层;3D限幅器等离子;流量剪切;基座物理EMC3-乙烯;

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