Modelling spray impingement onto flat, rigid walls using an Eulerian-Lagrangian method

Liquid sprays are important in a range of industrial or engineering processes such as fuel injection in diesel engines or the spray painting of car door panels. It is often claimed that the characteristic impact behaviour of an individual spray droplet may be extrapolated to multiple droplets within the spray. Using a previously developed numerical model for the solution of multiphase °ow problems it is shown that the impact behaviour of single and multiple droplets is very different, especially in the spreading and secondary droplet expulsion phase