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Full wave analysis of the current-driven resistive wall mode including the ferromagnetic wall effects

机译:电流驱动的电阻壁模式的全波分析,包括铁磁壁效应

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The effects of ferromagnetic wall on the current-driven resistive wall modes (RWMs) are investigated both analytically and numerically. The dispersion relations (DRs) of the RWMs are derived for a flat q-profile and a spatially varying q-profile including the plasma inertia at the vicinity of the plasma surface. The parameter dependences, such as the wall position and the wall permeability, of the growth rate of RWMs are obtained from the DR and the numerical simulations using a full wave linear stability analysis code TASK/WA. The results show much better agreement than previous DR. The growth rate increases monotonically with the permeability. The critical plasma rotation velocity which is needed to stabilized RWMs is also investigated numerically. The critical velocity also increases almost linearly with the permeability because of the increase in the growth rate.
机译:分析和数值研究了铁磁壁对电流驱动的电阻壁模式(RWM)的影响。对于平坦的q轮廓和空间变化的q轮廓(包括等离子表面附近的等离子惯性),得出RWM的色散关系(DRs)。使用全波线性稳定性分析代码TASK / WA从DR和数值模拟获得RWMs增长率的参数依赖性,例如壁位置和壁渗透率。结果表明,与以前的灾难恢复相比,一致性更好。增长率随着渗透率单调增加。还数值研究了稳定RWM所需的临界等离子体转速。由于生长速率的增加,临界速度也几乎随渗透率线性增加。

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