Analytic investigation of combined effects of anisotropic thermal transport and energetic particles on stability of resistive plasma resistive wall mode

Analytic investigation of combined effects of anisotropic thermal transport and energetic particles on stability of resistive plasma resistive wall mode
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各向异性热传输和高能粒子对电阻等离子体电阻壁模式稳定性的综合影响分析研究

DOI:
10.1063/5.0031261
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发表时间:
2020-12
期刊:
影响因子:
2.2
通讯作者:
G.Z.Hao
G.Z.Hao
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
X.Bai;Y.Q.Liu;G.Z.Hao

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利用基于能量原理的解析模型研究了各向异性热输运和俘获高能粒子(EPs)对电阻等离子体电阻壁模(RPRWM)稳定性的综合影响.结果定性地证实了最近的环形建模研究[Bai等人,Phys.Plasmas 27,072502(2020)],其中热传输可以根据等离子体平衡和高能粒子的参数来稳定RPPWM。分析模型预测了一个完全稳定的RPRWM在高阻等离子体中,在足够高的EP的压力,和有限的等离子体流。热输运的稳定效应源于其与电阻层和被捕获的高能粒子相关联的能量耗散的增强。
The combined effects of anisotropic thermal transport and trapped energetic particles (EPs) on the stability of the resistive plasma resistive wall mode (RPRWM) are investigated by an energy-principle based analytical model. The results qualitatively confirm that of a recent toroidal modeling study [Bai et al., Phys. Plasmas 27, 072502 (2020)], in which the thermal transport can stabilize the RPPWM depending on the parameters of both the plasma equilibrium and energetic particles. The analytical model predicts a complete stabilization of the RPRWM in highly resistive plasmas, at sufficiently high EPs' pressure, and finite plasma flow. The stabilizing effect of thermal transport originates from its enhancement of energy dissipations associated with both the resistive layer and the trapped energetic particles.
DOI: 10.1063/1.5003664
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