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Zonal flows and pattern formation

机译:区域流动和图案形成

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摘要

The general aspects of zonal flow physics, their formation, damping and interplay with quasi two dimensional turbulence are explained in the context of magnetized plasmas and quasi-geostrophic fluids with an emphasis on formation and selection of spatial patterns. General features of zonal flows as they appear in planetary atmospheres, rotating convection experiments and fusion plasmas are reviewed. Detailed mechanisms for excitation and damping of zonal flows, and their effect on turbulence via shear decorrelation is discussed. Recent results on nonlocality and staircase formation are outlined.
机译:在磁化等离子体和准地转流体的背景下,解释了纬向流物理学的一般方面,其形成,阻尼以及与准二维湍流的相互作用,重点是空间模式的形成和选择。回顾了在行星大气中出现的纬向流的一般特征,旋转对流实验和聚变等离子体。讨论了激发和衰减地层流的详细机制,以及它们通过剪切解相关对湍流的影响。概述了关于局部性和楼梯形成的最新结果。

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