Holger Babinsky is Professor of Aerodynamics at the University of Cambridge and a Fellow of Magdalene College. He received his Diplom-Ingenieur (German equivalent of MS degree) with distinction from the University of Stuttgart and his PhD from Cranfield University with an experimental study of roughness effects on hypersonic SBLIs. From 1994 to 1995, he was a Research Associate at the Shock Wave Research Centre of Tohoku University, Japan, where he worked on experimental and numerical investigations of shock-wave dynamics. He joined the Engineering Department at Cambridge University in 1995 to supervise research in its high-speed flow facilities. Professor Babinsky has twenty years experience in the research of SBLIs, particularly in the development of flow-control techniques to mitigate the detrimental impact of such interactions. He has authored and coauthored many experimental and theoretical articles on high-speed flows, SBLIs and flow control, as well as various low-speed aerodynamics subjects. Professor Babinsky is a Fellow of the Royal Aeronautical Society, an Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA) and a Member of the International Shock Wave Institute. He serves on a number of national and international advisory bodies. Recently, in collaboration with the US Air Force Research Laboratories, he organized the first AIAA workshop on shock wave-boundary-layer prediction. He has developed undergraduate- and graduate-level courses in Fluid Mechanics and received several awards for his teaching. John K. Harvey is a Professor in Gas Dynamics at Imperial College and is a visiting Professor in the Department of Engineering at the University of Cambridge. He obtained his PhD in 1960 at Imperial College for research into the roll stability of slender delta wings which was an integral part of the Concorde development program. In the early 1960s he became involved in experimental research into rarefied hypersonic flows, initially with Professor Bogdonoff at Princeton University and subsequently back at Imperial College in London. He has published widely on the use of the Direct Simulation Monte Carlo (DSMC) computational method to predict low density flows and he has specialized in the development of suitable molecular collision models used in these computations to represent reacting, ionized and thermally radiating gases. He has also been active in the experimental validation of this method. Through his association with CUBRC, Inc. in the USA, he has been involved in the design and construction of three major national shock tunnel facilities and in the hypersonic aerodynamic research programs associated with them. Professor Harvey has also maintained a strong interest in low speed experimental aerodynamics and is a recognized expert on the aerodynamics of F1 racing cars. Professor Harvey is a Fellow of the Royal Aeronautical Society and an Associate Fellow of the American Institute of Aeronautics and Astronautics (AIAA).