Congratulations to Prof. Hans Hornung – Emeritus, from the California Institute of Technology on receiving the 2011 AIAA Fluid Dynamics Award. This is the highest and most prestigious award given out by the Fluid Dynamics Technical Committee. It reflects upon Prof. Hornung's outstanding career accomplishments, specifically on his numerous important theoretical and experimental contributions related to the transition between normal and Mach reflections and nonequlibrium boundary layer t

