【摘要】 边缘局域模（Edge Localized Modes,ELMs）的控制是国际热核聚变实验堆（International Thermonuclear Experimental Reactor,ITER）及未来磁约束聚变堆安全运行必须解决的一个关键主题。近年来，大量的理论模拟和实验研究证明，共振磁扰动（Resonant Magnetic Perturbation,RMP）是一种非常有效控制边缘局域模的技术。为了更好地理解HL-2A托卡马克中ELMs的控制，本文基于HL-2A托卡马克实验上等离子体和RMP线圈的位形，使用MARS-F/K程序，计算了高约束模式下等离子体对RMP的漂移动理学响应，并与流体模型的结果进行对比；进一步对等离子体平衡压强、环向流以及热粒子碰撞效应等关键参数进行了敏感性研究。结果表明，随着归一化比压βN的增加，流体响应模型预测的等离子体响应幅度最初相对较弱，随后在接近无壁比压极限时发生强烈变化，但这一非物理因素“跳变”在动理学响应模型中得到了修正。此外，在考虑粒子碰撞效应的动理学响应中，捕获热离子的非绝热共振贡献显著；而忽略粒子碰撞效应，捕获热电子的进动漂移共振贡献则更加显著。由此可见在高比压等离子体响应中考虑动理学效应的重要性，尤其是在考虑粒子碰撞效应时，需要考虑捕获粒子的非绝热共振贡献。更多还原

【Abstract】 [Background] The control of edge localized modes(ELMs) is a key issue for the safety operation of ITER and future magnetic confinement fusion reactors. In recent years, extensive theoretical simulations and experimental studies have demonstrated that resonant magnetic perturbation(RMP) is a promising method for controlling edge localized modes(ELMs) in H-mode plasmas. [Purpose] This study aims to investigate drift kinetic resonant effects of thermal particles on the plasma response to the applied RMP and compare with that of the fluid model for better understanding of ELMs control in HL-2A. [Methods] Based on experimental plasma and RMP coil configurations in HL-2A, the MARS-F/K codes were employed to compute the drift dynamic response of plasma to RMP under high constraint mode and compared it with the results of fluid model. Further sensitivity studies were conducted on key parameters including the plasma equilibrium pressure, toroidal flow as well as the thermal particle collision effects. [Results] The fluid response model predicts an initially relatively weak enhancement of the plasma response amplitude with the equilibrium pressure parameter β_N, followed by a strong variation as βN approaches the Troyon no-wall beta limit. The latter is unphysical and is eliminated by the kinetic response model. Including kinetic response and considering particle collision, the non-adiabatic resonant contribution of trapped thermal ions is found to be significant. Neglecting the particle collision, however, the trapped thermal electron contribution becomes more pronounced. [Conclusions] The importance of considering kinetic effects for high-beta plasma response is emphasized by this study. It is important to include the non-adiabatic resonant contribution of trapped particles to the kinetic response while taking into account the particle collision effect.更多还原