In this study, the center of a concave surface was analytically studied using the volume of fluid approach to simulate hollow and dense droplets on a variety of solid obstacles. OpenFoam software was used to carry out the numerical simulations. The hollow droplet’s fluid phase, Glycerine, has an outer diameter of 5.25 mm and its gas phase, air, has a diameter of 4 mm. We looked at the laminar flow of an incompressible Newtonian fluid phase. Jet characteristics and droplet collision hydrodynamic behavior were investigated. Due to the interaction between droplets and shells on the obstacle’s surface and the concave surface, which causes a pressure difference and improves fluid movement, the largest jet size is consequently produced in rectangular obstacles. The sharp obstacle, on the other hand, molds the jet’s shortest length and height.

在这项研究中，使用流体体积方法对凹面的中心进行了分析研究，以模拟各种固体障碍物上的空心和致密液滴。OpenFoam 软件用于进行数值模拟。空心液滴的液相甘油的外径为 5.25 毫米，气相空气的直径为 4 毫米。我们研究了不可压缩的牛顿流体相的层流。研究了射流特性和液滴碰撞流体动力学行为。由于障碍物表面和凹面的液滴和壳之间的相互作用，导致压力差并改善流体运动，因此在矩形障碍物中产生最大射流尺寸。另一方面，尖锐的障碍物塑造了射流的最短长度和高度。