Interfacial Jetting Phenomena Induced by Focused Surface Vibrations
Interfacial Jetting Phenomena Induced by Focused Surface Vibrations
复制标题
DOI：
10.1103/physrevlett.103.024501
复制
发表时间：
2009-07-10
影响因子：
8.6
通讯作者：
Yeo, Leslie Y.
中科院分区：
文献类型：
--
作者：
Tan, Ming K.;Friend, James R.;Yeo, Leslie Y.
We exploit large accelerations associated with surface acoustic waves to drive an extraordinary fluid jetting phenomena. Laterally focusing the acoustic energy to a small region beneath a drop placed on the surface causes rapid interfacial destabilization. Above a critical Weber number We, an elongated jet forms for drops with dimensions greater than the fluid sound wavelength. Further increases in We lead to single droplet pinch-off and subsequent axisymmetric breakup to form multiple droplets. A simple equation based on a momentum balance is derived to predict the jet velocity.
