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首页> 外文期刊>Physics of plasmas >Rotation braking with n=1 nonaxisymmetric magnetic perturbation in the EAST tokamak
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Rotation braking with n=1 nonaxisymmetric magnetic perturbation in the EAST tokamak

机译：旋转制动与N = 1个非同位对称磁扰动在东部托卡马克

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摘要

The toroidal plasma rotation braking effect during the application of n = 1 static resonant magnetic perturbation is studied by momentum transport analysis in the EAST tokamak. The braking torque shows a global profile and two peaks located near the plasma core and the edge, respectively. The effect of momentum diffusion contributes significantly to the calculated torque. Simulation results with the obtained torque and momentum diffusion coefficients well reproduce the observed plasma rotation evolution. Neoclassical toroidal viscosity (NTV) torque is modeled for comparison with the experimental torque. The total integrated NTV torque is around -0.12 Nm, which is comparable to the observed braking torque (around -0.33 Nm). In the plasma edge, there is a peak in the NTV torque profile, which agrees well in amplitude with the obvious peak in the observed torque density profile. An additional peak in the NTV torque profile due to the ion bounce resonance is also located in the core region. However, the magnitude of this peak is much smaller than the observed one near the plasma core. Published under license by AIP Publishing.
机译：通过东部托卡马克的动量运输分析研究了在施加n = 1静态共振磁扰动期间的环形等离子体旋转制动效果。制动扭矩分别示出了全局轮廓和位于等离子体芯和边缘附近的两个峰。动量扩散的效果显着贡献到计算的扭矩。通过所获得的扭矩和动量扩散系数良好地再现观察到的等离子体旋转演化的仿真结果。新古典环形粘度（NTV）扭矩模拟与实验扭矩相比。总集成的NTV扭矩约为-0.12nm，其与观察到的制动扭矩（约为-0.33nm）相当。在等离子体边缘中，NTV扭矩曲线中存在峰值，这在观察到的扭矩密度分布中具有明显峰值的幅度良好。由于离子反弹谐振引起的NTV扭矩曲线中的附加峰值也位于芯区域中。然而，该峰的大小远小于观察到的等离子体芯附近的一个。通过AIP发布在许可证下发布。

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  • 来源
    《Physics of plasmas》 |2019年第5期|共8页
  • 作者

    Li X. Y.; Sun Y. W.; Wang H. H.; Zang Q.; Li Y. Y.; Liu H. Q.; Shi T. H.; Li G. Q.; Hao B. L.; Gu S.; Shen B.;

  • 作者单位

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

    Chinese Acad Sci Inst Plasma Phys POB 1126 Hefei 230031 Anhui Peoples R China;

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  • 正文语种 eng
  • 中图分类 等离子体物理学;
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