Spreading and atomization of droplets on a vibrating surface in a standing pressure field

被引：23

作者：

Deepu, P. ^{[2
]}

Basu, Saptarshi ^{[2
]}

Saha, Abhishek ^{[1
]}

Kumar, Ranganathan ^{[1
]}

机构：

[1] Univ Cent Florida, Orlando, FL 32816 USA

[2] Indian Inst Sci, Bangalore 560012, Karnataka, India

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 14期

关键词：

HEAT-TRANSFER; NANOFLUIDS; VISCOSITY;

D O I：

10.1063/1.4757567

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the first observation and analytical model of deformation and spreading of droplets on a vibrating surface under the influence of an ultrasonic standing pressure field. The standing wave allows the droplet to spread, and the spreading rate varies inversely with viscosity. In low viscosity droplets, the synergistic effect of radial acoustic force and the transducer surface acceleration also leads to capillary waves. These unstable capillary modes grow to cause ultimate disintegration into daughter droplets. We find that using nanosuspensions, spreading and disintegration can be prevented by suppressing the development of capillary modes and subsequent break-up. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757567]

引用

页数：5

共 19 条

[1] Thermally induced secondary atomization of droplet in an acoustic field [J].