This paper reports a novel cone-ray model of background-oriented schlieren (BOS) imaging
that accounts for depth-of-field effects. Reconstructions of the density field performed with …

Global surface pressure measurements of a 5.7% scale AFRL Initial Concept 3. X vehicle
(IC3X) were obtained using a fast-responding ruthenium-based pressure-sensitive paint …

Background oriented schlieren (BOS) is a non-intrusive flow visualization technique that is
used to characterize density in complex, high-speed flows. Hypersonic flows over bluff …

Experiments of shock wave/boundary layer interactions over a nominally two-dimensional
compression ramp are conducted in a Mach 4 Ludwieg tube tunnel. Measurements of …

Global surface temperature distributions were investigated on the Initial Concept 3. X vehicle
model in the UTSA Mach 7 Wind Tunnel for two different angles of attack, 0° and 5° at a …

High-speed global surface temperature distributions and heat flux measurements on the
Initial Concept 3. X vehicle (IC3X) model were investigated at the UTSA Mach 7 wind tunnel …

Short-duration facilities, such as Ludwieg tube wind tunnels, are a critical and widespread
technology for hypersonic T&E. The low cost and high flow quality of such facilities make …

Hypersonic flight holds immense promise across commercial aviation, defense, and space
exploration. Yet, many technical challenges hamper the widespread use of hypersonic …

Drag and heating coefficient databases and models are crucial to destructive reentry
simulation. The NASA Orbital Debris Program Office (ODPO) develops, maintains, and …

Experiments with sonic and Mach 3 transverse jets in crossflow (JICF) were conducted in the
UTSA Mach 7 wind tunnel. A test apparatus based on a flat plate with a sharp leading edge …