论文标题

在振荡纤维上滑动,振动和摇摆的液滴

Sliding, vibrating and swinging droplets on an oscillating fibre

论文作者

Poulain, Stéphane, Carlson, Andreas

论文摘要

我们通过实验研究水滴在倾斜和垂直振荡的刚性纤维上的动力学。随着我们改变振荡的频率和振幅,不同模式之间的液滴过渡:谐波泵送,次谐波抽水,摇摆和泵送模式的结合以及泵浦和挥杆模式的组合。我们表征了这些响应,并报告它们如何影响液滴沿纤维的滑动速度。液滴摆动模式是通过最小模型来解释的。

We study experimentally the dynamics of a water droplet on a tilted and vertically oscillating rigid fibre. As we vary the frequency and amplitude of the oscillations the droplet transitions between different modes: harmonic pumping, subharmonic pumping, a combination of rocking and pumping modes, and a combination of pumping and swinging modes. We characterise these responses and report how they affect the droplet's sliding speed along the fibre. The droplet swinging mode is explained by a minimal model making an analogy between the droplet and a forced elastic pendulum.

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