环形流合并于gyrofluid电阻性漂移波湍流
Merging of zonal flows in gyrofluid resistive drift-wave turbulence
AI总结：
本文研究了gyrofluid电阻性漂移波湍流中环形流的非线性动力学，揭示了非线性雷诺应力传输是环形流合并的主要原因，并探讨了相变概念在环形流转变滞后现象中的应用。
摘要：
在gyrofluid修正的Hasegawa-Wakatani模型背景下，研究了环形流的非线性动力学。探讨了环形流的合并以及初始环形流模式的混沌发展。推导并使用了考虑一致有限劳尔半径（FLR）效应的环形流动量和能量守恒方程，用于数值模拟中环形流合并的定量分析。发现非线性局部雷诺应力传输而非（超）粘性耗散是合并的主要原因。讨论了在严格热力学意义上相变概念在环形流转变滞后现象中的适用性。
英文摘要：
Non-linear dynamics of zonal flows is investigated in the context of the gyrofluid modified Hasegawa-Wakatani model. Merging of zonal flows and the chaotic developement of the initial zonal flow pattern is explored. Conservation equations for zonal flow momentum and energy with consistent finite Larmor radius (FLR) effects are derived and used for a quantitative analysis of zonal flow mergers in numerical simulations. The nonlinear local Reynolds stress transfer as opposed to (hyper)viscous dissipation is found to be the main cause of merging. The applicability of the concept of a phase transition in the strict thermodynamical sense is discussed in context of zonal flow transition hysteresis.
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