This seminar presents results from several recent projects in experimental high-speed aerodynamics. The first part examines bluntness-induced structures observed over cones in hypersonic flow, where simultaneous schlieren imaging, focused laser differential interferometry (FLDI), and surface pressure measurements are used to characterize the formation and evolution of elongated structures “wisps”.
Alexandre Berger,
FAMU–FSU College of Engineering
The second part presents recent work on the determination of steady and unsteady aerodynamic loads using pressure-sensitive paint on an elliptic cone at angle of attack, demonstrating how global pressure measurements can be used to recover aerodynamic forces while simultaneously resolving transition fronts, vortex structures, and other unsteady flow phenomena.
The seminar concludes with selected results from ongoing experimental investigations and a discussion of future research directions in high-speed experimental aerodynamics.
Alexandre Berger is an Assistant Professor in the Department of Mechanical Engineering at the FAMU–FSU College of Engineering. He received his Ph.D. in Aerospace Engineering from Texas A&M University in 2020 before joining the Air Force Research Laboratory (AFRL) as a postdoctoral researcher. His research focuses on experimental high-speed aerodynamics, boundary-layer transition, shock-boundary layer interactions, aerodynamic measurements and optical diagnostics.