The Production of Equal and Unequal Size Droplet Pairs

Experimental examination of interactions between small water droplets, such as wake interactions, collision-coalescence phenomena, and the dependence of these interactions on the electrical charge and field, has awaited the development of a dependable source of multisize droplets. A simple droplet generator has been developed to produce controlled pairs of equal and unequal size droplets. The generator and its applicability to droplet interaction studies are described.