In this study, the dynamic behavior of droplet collision with a dry, stationary, spherical particle was numerically investigated based on the level contour reconstruction method (LCRM). A broad range of impact conditions: Weber number (30 ≤ We ≤ 90), surface wettability (20° ≤ θ_eqi ≤ 175°), and droplet-to-particle size ratio (1/4 ≤ Ω ≤ 1/2), are considered, and three major impact outcomes: deposition, partial rebound, and complete rebound, are analyzed in detail. The dynamic spreading factor (for deposition cases), contact time (for complete rebound cases), and mass and momentum of the rebounded droplet (for partial rebound cases) were quantitatively investigated. The study quantitatively and systematically investigated the mass and momentum of (partially) rebounded droplets. We confirmed that the contact time of a (completely) rebounded droplet is independent of the surface curvature of the spherical particle as well as the impact velocity with the given impact conditions.

在这项研究中，基于水平轮廓重建方法（LCRM）数值研究了液滴与干燥，静止的球形颗粒碰撞的动力学行为。宽范围的冲击条件：韦伯数（30≤我们≤90），表面润湿性（20°≤ θ _EQI ≤175°）和液滴与粒径之比（1/4≤Ω≤1/2），并详细分析了三个主要影响结果：沉积，部分回弹和完全回弹。定量研究了动态扩散因子（对于沉积情况），接触时间（对于完全回弹情况）以及回弹液滴的质量和动量（对于部分回弹情况）。该研究定量和系统地研究了（部分）回弹液滴的质量和动量。我们证实，（完全）反弹的液滴的接触时间与球形颗粒的表面曲率以及在给定冲击条件下的冲击速度无关。