Massively Multiplexed Electrohydrodynamic Tip Streaming from a Thin Disc
Massively Multiplexed Electrohydrodynamic Tip Streaming from a Thin Disc
复制标题
从薄圆盘流出的大规模多路电流体动力学尖端
DOI：
10.1103/physrevlett.126.064502
复制
发表时间：
2021
影响因子：
8.6
通讯作者：
Weiwei Deng
中科院分区：
文献类型：
--
作者：
Zhibei Wang;Yi Tian;Chuwei Zhang;Yuenan Wang;Weiwei Deng
We report an experimental study on the multiple tip streaming enabled by an externally wetted thin disc in electric fields. The electrohydrodynamic stress acting on the liquid-air interface triggers an interfacial instability that develops into multiple radial liquid ligaments at the rim of the disc. The scaling law suggests that the wave number is inversely proportional to the square of the peak electric field at the rim, which is determined by the combined thickness of the disc and the attached liquid layer. The thin disc edge effectively intensifies the electric field, which in turn leads to spacing between ligaments as short asfor ethanol, generating over 1000 cone jets for a 1 cm diam thin disc.
