Direct numerical simulations (DNS) were carried out to investigate the laminar–turbulent
transition for a flared cone at Mach 6 at zero angle of attack. The cone geometry of the flared …

Visualization experiments are performed to investigate the development of instability waves
within the boundary layer on a slender cone under high Mach number conditions. The …

Boundary-layer transition was studied on a sharp 7 deg cone in two hypersonic wind tunnels
at Mach numbers of 5, 6, 8, and 14 over a range of freestream Reynolds numbers between …

To investigate the pressure-fluctuation field beneath turbulent spots in a hypersonic
boundary layer, a study was conducted on the nozzle wall of the Boeing/AFOSR Mach-6 …

Hypersonic boundary-layer instability disturbance and transition experiments were
performed in the Air Force Research Laboratory Mach-6 Ludwieg Tube on a 1-m-long ogive …

High-resolution direct numerical simulations (DNS) were carried out to investigate the
nonlinear breakdown process of a three-dimensional wave packet initiated by a short …

View Video Presentation: https://doi. org/10.2514/6.2023-2438. vid A self-aligned focusing
schlieren (SAFS) apparatus based on a recently published design is implemented for the …

Hypersonic boundary-layer transition can be caused by many different mechanisms. This
research focuses on studying the growth and breakdown of the second-mode instability …

Experiments were performed in the low-enthalpy AFRL Mach 6 Ludwieg Tube to investigate
the effects of surface temperature on hypersonic boundary layer transition. The test article for …

Three variants of schlieren techniques are employed to investigate the development of
second-mode instability waves in the hypersonic boundary layer of a slender cone in a …