论文标题
垂直振动的液滴中间歇性动态爆发
Intermittent dynamic bursting in vertically vibrated liquid drops
论文作者
论文摘要
在垂直振动的毫升液体液滴中观察到先前未报告的III型间歇性方案，该液滴浸入了由疏水固体板支撑的更具粘性且密集的不混溶的流体层中。随着振动振幅逐渐增加，滴水表面上的次谐波法拉第波会激发。我们发现一个狭窄的振动幅度窗口略高于法拉第阈值，在该阈值中，滴显示了一个不规则的幅度爆发事件的不规则序列，与低振幅活性的间隔交替出现。触发物理机制与表面法拉第波之间的竞争与滴的形状变形模式有关。
A previously unreported regime of type III intermittency is observed in a vertically vibrated milliliter-sized liquid drop submerged in a more viscous and less dense immiscible fluid layer supported by a hydrophobic solid plate. As the vibration amplitude is gradually increased, subharmonic Faraday waves are excited at the upper surface of the drop. We find a narrow window of vibration amplitudes slightly above the Faraday threshold, where the drop exhibits an irregular sequence of large amplitude bursting events alternating with intervals of low amplitude activity. The triggering physical mechanism is linked to the competition between surface Faraday waves and the shape deformation mode of the drop.
