轨迹俘获和漂移turbulence在准线性阶段以后的演化
Trajectory trapping and the evolution of drift turbulence beyond the quasilinear stage
摘要：
湍流磁化等离子体的测试模式进行了研究，考虑到离子捕获的特点，在背景湍流的E × B漂移。我们发现，陷阱提供了形成大尺度的潜在结构（逆级联）在漂移湍流中观察到的物理机制。结合势与反磁速度的运动的捕获确定了在相反方向上的离子流，这降低了生长速率并最终抑制了漂移模式。它还确定了过渡的带状流动模式与压缩性的影响，由于偏振漂移的背景湍流。
英文摘要：
Test modes on turbulent magnetized plasmas are studied taking into account the ion trapping that characterizes the E x B drift in the background turbulence. We show that trappyng provides the physical mechanism for the formation of large scale potential structures (inverse cascade) observed in drift turbulence. Trapping combined with the motion of the potential with the diamagnetic velocity determines ion flows in opposite directions, which reduce the growth rate and eventually damps the drift modes. It also determine transitory zonal flow modes in connection with compressibility effect due to the polarization drift in the background turbulence.
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