We have carried out a series of simulations on streamer initiation from hydrometeors with different sizes. The simulation results confirm the findings from previous research that larger hydrometeors can trigger streamer discharges at lower ambient fields. Meek number is used to interpret the dependence of the critical field to initiate streamer on the hydrometeor size. This work indicates that a smaller Meek number ranging from 15 to 18 is needed for streamer initiation from spherical hydrometeors. The lowest value is slightly smaller than the lowest Meek number suggested by Raether-Meek criterion.

中文翻译：

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使用 Raether-Meek 准则了解拖缆起始对水凝物尺寸的依赖性

我们对不同尺寸的水凝物引发的拖缆进行了一系列模拟。模拟结果证实了先前研究的结果，即较大的水凝物可以在较低的环境场触发流注放电。Meek 数用于解释临界场对水凝物大小的依赖性以启动拖缆。这项工作表明，从球形水凝物引发流注需要较小的米克数，范围为 15 到 18。最低值略小于 Raether-Meek 准则建议的最低 Meek 数。