【摘要】 在离子温度梯度模(ITG)湍流背景中,通过最小自由度模型中模耦合方式产生带状流,对此模型做了动力学稳定性分析及数值求解.并在此基础上初步探讨了湍流中漂移波与带状流的能量转移,以及雷诺协强与带状流的关系.更多还原

【Abstract】 In the ITG(ion-temperature-gradient) mode turbulence background,the dynamics of zonal flow generation is studied based on the minimal freedom model.We study the dynamical instability and present detailed numerical results.The energy cascade process in the ITG mode turbulence and the relationship between Reynolds stress and zonal flow are also discussed.The mechanism of turbulence suppression by zonal flow is clearly explored and displayed.更多还原