Lattice-Boltzmann modeling of collisions between droplets and particles

The dynamics of collisions between droplets and particles are investigated numerically by means of two-color lattice-Boltzmann method (LBM). We observe three possible scenarios of a collision – one leading to a coalescence between a droplet and particle and two leading to separation. We have investigated the influence of nondimensional parameters, such as Weber and capillary number and droplet to particle diameter ratio, on the kinetics of a collision. The influence of a shape of a particle on a collision with droplet were also analyzed. The results have been compared with the experimental results presented in works of other authors.