Simultaneous Impact of Multiple Droplets on Liquid Film

• DOI: 10.1016/j.jiec.2018.04.011
• Publication Date: 2018-04-19T06:05:29Z
• Authors: Gangtao Liang; Tianyu Zhang; Haibing Yu; Hongliang Chen; Shengqiang Shen
• Keywords: Momentum (technical analysis)

Abstract Multiple droplets impinging on a thin liquid film simultaneously is numerically studied using a three-dimensional model with an implement of a random disturbance subjected to Gaussian distribution. This model is very effective to predict droplet splashing under relatively high impingement momentum. Interface evolutions and field distributions are addressed after droplets impact. Besides, a geometric model is built up to demarcate the impact region into two semicircular regions and a series of rectangular regions during simultaneous impact, further to discuss the variations of area and residual film thickness in each region as well as the total area and average film thickness.