This is the first book to encompass the fundamental phenomenon, principles, and processes of discrete droplets of both normal liquids and melts. It provides the reader with the science and engineering of discrete droplets, and provides researchers, scientists and engineers with the latest developments in the field. The book begins with a systematic review of various processes and techniques, along with their applications and associations with materials systems. This is followed by a description of the phenomena and principles in droplet processes. Correlations, calculations, and numerical modeling of the droplet processes provide insight into the effects of process parameters on droplet properties for optimization of atomizer design. Droplets are found in the areas of: metallurgy materials automotive aerospace medicine food processing agriculture and power generation. They are also encountered in a huge range of engineering applications including: spray atomization spray deposition thermal spray spray drying spray combustion spray cooling spray inhalation aerosol spray crop spray. CONTENTS: Processes and Techniques for Droplet Generation; Atomization of Normal Liquids; Atomization of Melts; Fundamental Phenomena and Principles in Droplet Processes; Droplet Formulation; Droplet Deformation on a Surface; Empirical and Analytical Correlations of Droplet Properties; Concept and Definitions of Droplet Size Distribution; Empirical Correlations for Droplet Sizes of Normal Liquids; Empirical Correlations for Droplet Sizes of Melts; Modeling of Droplet Processes of Normal Liquids; Modeling of Droplet Processes of Melts; Modeling of Droplet Deformation on a Surface; and more.