Incipient break-up of a droplet

An experimental study was conducted on the subject of a droplet splash using different fluids with a number of film thicknesses while searching for the incipient point of break-up. The goal then was to obtain a relationship between drop dimensionless parameter and the point of incipient break-up or when the first sign of splash with one or more droplets leaving the body of the liquid. The Reynolds numbers (Re) and the Weber numbers (We) at break-up were considered for various values of 8/D (liquid thickness/drop diameter). It was found that depending upon the fluids properties and the film's thickness, the physical mechanism of incipient break up can be either a crown break-up or a splinter outburst. The experimental results conclude that the incipient break-up of liquid drops impacting on thin liquid films may be correlated using the Re, We and 8/D