arXivDaily arXiv每日学术速递 周一至周五更新
arXiv physics/0605180physics.flu-dynphysics.gen-ph
收藏

DC电场作用下液滴的节律运动

Rhythmic Motion of a Droplet under a DC Electric Field

M. Hase, S. N. Watanabe, K. Yoshikawa

摘要:

研究了稳态电场对油中直径为几十微米的水滴的影响。这种液滴以自发的方式在电极之间表现出重复的平移运动。推导出这种振荡运动的状态图;在0-20 V下,液滴固定在电极表面,在20-70 V下,液滴在电极之间表现出小振幅的振荡运动,并且在70-100 V下,液滴在电极之间表现出大振幅的周期性运动。所观察到的有节奏的运动解释在一个半定量的方式,通过使用微分方程,其中包括充电液滴下的电场的效果。我们还发现,孪生液滴表现出同步的节奏运动之间的电极。

英文摘要:

The effect of a stationary electric field on a water droplet with a diameter of several tens micrometers in oil was examined. Such a droplet exhibits repetitive translational motion between the electrodes in a spontaneous manner. The state diagram of this oscillatory motion was deduced; at 0-20 V the droplet is fixed at the surface of the electrode, at 20-70 V the droplet exhibits small-amplitude oscillatory motion between the electrodes, and at 70-100 V the droplet shows large-amplitude periodic motion between the electrodes. The observed rhythmic motion is explained in a semi-quantitative manner by using differential equations, which includes the effect of charging the droplet under an electric field. We also found that twin droplets exhibit synchronized rhythmic motion between the electrodes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑