FLEET velocimetry for aerodynamics
Long-lasting emission from femtosecond excitation of nitrogen-based flows shows promise
as a useful mechanism for a molecular tagging velocimetry instrument. The technique …
as a useful mechanism for a molecular tagging velocimetry instrument. The technique …
Localized time accurate sampling of nonequilibrium and unsteady hypersonic flows: methods and horizons
Modern “non-intrusive” optical methods are providing revolutionary capabilities for
diagnostics of hypersonic flow fields. They generate accurate information on the …
diagnostics of hypersonic flow fields. They generate accurate information on the …
Application of femtosecond-laser tagging for unseeded velocimetry in a large-scale transonic cryogenic wind tunnel
Femtosecond laser electronic excitation tagging (FLEET) velocimetry was applied in the
National Transonic Facility and assessed for its use in providing quantitative velocity …
National Transonic Facility and assessed for its use in providing quantitative velocity …
Hypersonic FLEET velocimetry and uncertainty characterization in a tripped boundary layer
JC Pehrson, BS Leonov, K Melone… - Measurement …, 2023 - iopscience.iop.org
Femtosecond laser electronic excitation tagging (FLEET) velocimetry is applied in a
hypersonic boundary layer behind an array of turbulence-inducing trips. One-dimensional …
hypersonic boundary layer behind an array of turbulence-inducing trips. One-dimensional …
Picosecond laser electronic excitation tagging velocimetry using a picosecond burst-mode laser
Detailed characterizations of picosecond laser electronic excitation tagging (PLEET) in pure
nitrogen (N_2) and air with a 24 ps burst-mode laser system have been conducted. The …
nitrogen (N_2) and air with a 24 ps burst-mode laser system have been conducted. The …
Long-lived nitric oxide molecular tagging velocimetry with 1+ 1 REMPI
The successful demonstration of long-lived nitric oxide (NO) fluorescence for molecular
tagging velocimetry (MTV) measurements is described in this Letter. Using 1+ 1 resonance …
tagging velocimetry (MTV) measurements is described in this Letter. Using 1+ 1 resonance …
Three-component flow velocity measurements with stereoscopic picosecond laser electronic excitation tagging
Nonintrusive three-component (3C) velocity measurements of free jet flows were conducted
by stereoscopic picosecond laser electronic excitation tagging (S-PLEET) at 100 kHz. The …
by stereoscopic picosecond laser electronic excitation tagging (S-PLEET) at 100 kHz. The …
高超声速流场激光测速技术研究进展
栗继伟， 罗凯， 尚甲豪， 王业军， 汪球， 赵伟 - 力学学报, 2023 - lxxb.cstam.org.cn
高超声速气流条件下飞行器内/外部流动中存在强湍流及脉动, 边界层转捩, 激波-
边界层干扰和高温真实气体效应等耦合效应, 表征该非定常流动现象对飞行器气动力 …
边界层干扰和高温真实气体效应等耦合效应, 表征该非定常流动现象对飞行器气动力 …
[HTML][HTML] RESEARCH PROGRESS OF LASER DIAGNOSTICS FOR VELOCIMETRY IN HYPERSONIC FLOWS
Coupling effects such as strong turbulence and turbulent fluctuation, boundary layer
transition, shock wave-boundary layer interaction, and high-temperature real gas effects can …
transition, shock wave-boundary layer interaction, and high-temperature real gas effects can …
On the use of liquid nitrogen droplets as flow tracers in cryogenic flow facilities at NASA Langley Research Center
JE Retter, RA Burns, J Fisher, J Felver… - AIAA Scitech 2021 …, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-1301. vid The injection of liquid
nitrogen droplets to cool the gas temperature in cryogenic wind tunnels is discussed as a …
nitrogen droplets to cool the gas temperature in cryogenic wind tunnels is discussed as a …