This open access book presents the main results of the Collaborative Research Center SFB-TRR 75, which spanned the period from 2010 to 2022. Scientists from a variety of disciplines, ranging from thermodynamics, fluid mechanics, and electrical engineering to chemistry, mathematics, computer science, and visualization, worked together toward the overarching goal of SFB-TRR 75, to gain a deep physical understanding of fundamental droplet processes, especially those that occur under extreme ambient conditions. These are, for example, near critical thermodynamic conditions, processes at very low temperatures, under the influence of strong electric fields, or in situations with extreme gradients of boundary conditions. The fundamental understanding is a prerequisite for the prediction and optimisation of engineering systems with droplets and sprays, as well as for the prediction of droplet-related phenomena in nature.

The book includes results from experimental investigations aswell as new analytical and numerical descriptions on different spatial and temporal scales. The contents of the book have been organised according to methodological fundamentals, phenomena associated with free single drops, drop clusters and sprays, and drop and spray phenomena involving wall interactions.

Presents fundamental droplet processes under extreme ambient conditions. Provides a better physical understanding of essential processes leading to improved prediction of larger systems. Summarizes the results of a common research project initiated in 2010 Open Access Book

Autorentext
Kathrin Schulte received her PhD in aerospace engineering. Her research focuses on droplet dynamics.

Prof. Tropea, now retired, has pursued research in the fields of Atomization and Sprays, Unsteady Aerodynamics, Wetting Phenomena and Measurement Techniques in Fluids Mechanics. He is currently Co-Editor-in-Chief of the SpringerNature journal Experiments in Fluids. Prof. Weigand is the head of the institute of aerospace thermodynamics. His research is focused on droplet dynamics, atomization and sprays and heat transfer.

Inhalt
Introduction and Overview about the Collaborative Research Center SFB-TRR75.- Methods and Fundamentals.- Free Droplets.- Droplets with Wall Interactions.