AI 中文总结
介绍一种用弹簧加载探针拉伸液体韧带在液池表面生成液滴的方法，通过改变探针半径和缩回长度确定三种状态，能在静止和振动液池上重复生成单液滴及有序液滴晶格，且单液滴半径符合体积守恒规律。
AI 中文摘要
我们介绍了一种通过用弹簧加载的圆柱形探针快速拉伸液体韧带在液池表面生成液滴的简单方法。通过改变探针半径\(a\)和缩回长度\(L\)，我们确定了三种状态。过度拉伸细韧带会产生多个液滴，而粗韧带拉伸不足则不会产生液滴。单液滴生成的最佳状态介于两者之间。在单液滴状态下，液滴半径按\(R \sim a^{2/3} L^{1/3}\)缩放，这与拉伸韧带的体积守恒一致。该方法能够在静止和振动液池上重复生成单液滴（\(R\)的变化小于\(5\%\)）以及用于导波流体动力学实验的有序液滴晶格。
英文摘要
We introduce a simple method for generating droplets at the surface of a liquid bath by rapidly stretching a liquid ligament with a spring-loaded cylindrical probe. By varying the probe radius $a$ and retraction length $L$, we identify three regimes. Overstretching a thin ligament produces multiple drops, while insufficient stretching of a thick ligament yields none. The optimal regime for single-drop generation lies in between. In the single-drop regime, the drop radius scales as $R \sim a^{2/3} L^{1/3}$, consistent with volume conservation of the stretched ligament. This method enables repeatable generation of single droplets (with <5% variation in $R$) on both still and vibrating baths and of ordered droplet lattices for pilot-wave hydrodynamics experiments.
