Satellite ejection in rapid droplet spreading
A new regime of satellite ejection following the slow deposition of droplets on near-complete wetting solidsubstrate is identified in experiments and direct numerical simulations. The results show that a self-similar theory foruniversal pinchoff can be used for the time evolution of the pinching neck. However, although good agreement is alsofound with the double-cone shape of the pinching neck for satellite ejection in droplet deposition on a pool of the sameliquid, substantial deviations are observed in such comparison for satellite ejection in rapid droplet spreading(including in the newly identified regime). This deviation is shown to result from interference by the solid substrate, arapid downwards acceleration of the top of the drop surface, and the rapid spreading process.
Droplet Moving contact line Pinch-off Multiphase flows Diffuse interface methods
丁航 E. Q. Li F. H. Zhang P. D. M. Spelt S. T. Thoroddsen
中国科学技术大学,合肥230026 National University of Sinagpore ,Singapore 117676 Imperial College London ,UK SW& 2AZ National University of Sinagpore ,Singapore 117676 King Abdullah University of Science and Technolog
国内会议
哈尔滨
英文
1-6
2011-08-22（万方平台首次上网日期，不代表论文的发表时间）