The edge region of quasi-adiabatic plasma is pedagogically simulated by the dynamics between the electric potential $\unicode[STIX]{x1D711}$ and the electron density $n$ whose equilibrium density gradient is negative and held fixed. The zonal flow (ZF) $V$ is either enforced sinusoidally or generated self-consistently from the turbulence. Cross-phase $\unicode[STIX]{x1D6FF}$ between $\unicode[STIX]{x1D711}$ and $n$ , which is important in the determination of the turbulence level and the transport, is strongly influenced by the ZF. In the region near $V=0$ , $\unicode[STIX]{x1D6FF}$ becomes negative due to the large gradient of the ZF. It is found that the instabilities are quenched there, and the fluctuations decay. The ZF thus works as a transport barrier in the region where the ZF changes direction with large gradient.

中文翻译：

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带状流动改变方向的抗漂移等离子体中湍流的抑制

准绝热等离子体的边缘区域通过电势之间的动力学进行教学模拟 $\unicode[STIX]{x1D711}$ 和电子密度 $n$ 其平衡密度梯度为负并保持固定。纬向流 (ZF) $V$ 要么是正弦强制执行，要么是从湍流中自洽地产生。跨阶段 $\unicode[STIX]{x1D6FF}$ 之间 $\unicode[STIX]{x1D711}$ 和 $n$ ，这对于确定湍流水平和传输很重要，受 ZF 的强烈影响。在附近地区 $V=0$ , $\unicode[STIX]{x1D6FF}$ 由于 ZF 的大梯度，变为负值。发现不稳定性在那里被淬灭，波动衰减。因此，ZF 在 ZF 以大梯度改变方向的区域中充当传输屏障。