This Research Area focuses on the fundamental study of multiphase flows in the vicinity of Smart Interfaces. The scientific objectives are related to the following flow types: dispersed flows, discontinuous flows and flows with phase change. All the proposed research topics are explicitly related to a spectrum of existing and emerging industrial applications. Emphasis will be placed on novel strategies for influencing and controlling the flow structure, stability, atomization and dynamics. The model processes to be examined include drops and spray collisions with surfaces, wavy flows in films and rivulets, flow disintegration and coalescence, as well as near-wall phase change. Newtonian and non-Newtonian liquids, mixtures, suspensions and emulsions will be investigated. The major long-term goals of this Research Area include tailored atomization, control of spray/drop/film interaction with walls, management of the near-wall solidification, and development of controllable and switchable multiphase microfluidic systems.