Although low-disturbance (“quiet”) hypersonic wind tunnels are believed to provide more
reliable extrapolation of boundary-layer transition behavior from ground to flight, the …

Focused laser differential interferometry (FLDI) is used to make freestream density
fluctuation measurements in the von Kármán Gas Dynamics Facility (VKF) Wind Tunnel D at …

高超声速边界层转捩直接影响飞行器表面的摩擦系数与热流分布, 对于高超声速飞行器的气动
布局以及热防护设计至关重要. 尽管高超声速边界层层/湍流转捩的相关研究已经开展长达半个 …

Focused laser differential interferometry (FLDI) and its relative two-point focused laser
differential interferometry (2pFLDI) are completely non-intrusive (ie seedless) optical …

This research effort coordinated by the NATO Science and Technology Organization Applied
Vehicle Technology 240 specialists' group compiles and analyzes second-mode amplitudes …

Combined free-stream disturbance measurements and receptivity studies in hypersonic
wind tunnels were conducted by means of a slender wedge probe and direct numerical …

To address the hitherto unknown mechanism of boundary-layer transition on blunt reentry
capsules, the role of roughness-induced disturbance growth on a spherical-section forebody …

Fast-response coaxial surface junction thermocouples have been used to measure time-
resolved stagnation temperature of the Mach 6 flow produced by the University of Southern …

The relationship between freestream disturbances and measured pitot pressure spectra,
defined as the transfer function, is investigated. Pitot probes used to characterize hypersonic …

Measurements of the flow in front of flat-face Pitot probes in NASA Langley Research
Center's 20-Inch Mach 6 Air Tunnel were made using a 35-point line focused laser …