Deposition Process of Droplets Impacting on a Horizontal Surface
The results of the experimental investigations and numerical simulations of droplet impact on a stationary horizontal surface are presented. The impact process of a droplet with high impact energy on a horizontal surface was photographed by a high-speed CCD. In addition, two-dimensional numerical simulation of the impact process was also performed using the VOF model. Comparison between the experimental and numerical results shows that the chosen computational model is suitable to simulate such impact processes. Furthermore, the effect of the droplet impact velocity and diameter on the impact process was studied in detailed. The numerical results show that the variation in droplet impact velocity has a significant effect on the maximum spread factor and spread speed, whereas, the variation in droplet diameter considerably influences the maximum spread factor and the oscillation of the drop in the receding phase.
Hao Zhang, Yang Fu and Zhong Tang
J. Y. Li et al., "Deposition Process of Droplets Impacting on a Horizontal Surface", Advanced Materials Research, Vols. 354-355, pp. 579-584, 2012