Analysis of super-cooled water droplet impact on a thin water layer and ice growth

The mechanics and heat flow of the impact and freezing of a Super-cooled Large Droplet (SLD) on to a thin mobile water layer is considered in the parameter range of interest to airframe icing. A series of 2-D Navier-Stokes solutions for droplet impact are presented. These simulations show the formation, ejection and break-up of splashed off jets and the freezing process. The simulations are compared critically to experiments performed under similar conditions.