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Autoresonant control of drift waves

机译:自动控制漂移波

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The control of nonlinear drift waves in a magnetized plasmas column has been investigated. The studies are based on the Hasegawa-Mima model, which is solved on a disk domain with radial inhomogeneity of the plasma density. The system is forced by a rotating potential with varying frequency defined on the boundary. To excite and control the waves we apply the autoresonant effect, taking place when the amplitude of the forcing exceeds a threshold value and the waves are phase-locked with the forcing. We demonstrate that the autoresonant approach is applicable for excitation of a range of steady nonlinear waves of the lowest azimuthal mode numbers and for controlling their amplitudes and phases. We also demonstrate the excitation of zonal flows (m = 0 modes), which are controlled via the forced modes.
机译:研究了磁化等离子体柱中的非线性漂移波的控制。 这些研究基于Haegawa-MIMA模型,该模型在磁盘结构域上求解,具有径向不均匀性的等离子体密度。 该系统被旋转电位强制,旋转电位具有在边界上定义的不同频率。 为了激发和控制波浪,当迫使幅度超过阈值时,发生自动谐振效果,并且波浪被迫使锁定。 我们证明自动化方法适用于激发最低方位角数量的一系列稳定非线性波和控制其幅度和阶段。 我们还证明了通过强制模式控制的区域流量(M = 0模式)的激发。

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