We investigate nonlinear stationary structures in a system of coupled equations describing drift wave turbulence and associated self-consistent zonal flows. The short-scale drift wave turbulence is described by a kinetic wave equation for the action density of drift waves, whereas the longer-scale zonal flows are described by a dynamic equation for the m = n = 0 (toroidally and poloidally symmetric) component of the potential. Nonlinear stationary structures in a moving frame can be obtained by retaining novel effects associated with 'trapped' and 'untrapped' drift wave trajectories. We show that drift wave turbulence can self-consistently sustain coherent, radially propagating modulation envelope structures such as solitons, shocks, nonlinear wave trains, etc. [References: 27]
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机译：我们在描述漂移波湍流和相关的自洽区域流的耦合方程组中研究非线性平稳结构。对于漂移波的运动密度，用动力学波方程描述了小尺度的漂移波湍流，而对于m = n = 0（环形和极向对称）的分量，则用动力学方程描述了较长尺度的纬向流。潜力。通过保持与“陷波”和“陷波”漂移波轨迹相关的新颖效果，可以在移动框架中获得非线性固定结构。我们表明，漂移波湍流可以自洽地维持相干的，径向传播的调制包络结构，例如孤子，冲击，非线性波列等。[参考文献：27]
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