Velocity and temperature measurements in Mach 18 nitrogen flow at Tunnel 9

A Dogariu, LE Dogariu, MS Smith… - AIAA Scitech 2021 …, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-0020. vid We report the first
application of Femtosecond Laser Electronic Excitation Tagging (FLEET) and Coherent Anti …

Femtosecond/picosecond rotational coherent anti-Stokes Raman scattering thermometry in the exhaust of a rotating detonation combustor

V Athmanathan, KA Rahman, DK Lauriola, J Braun… - Combustion and …, 2021 - Elsevier
Spatio-temporally resolved measurements of temperature using hybrid femtosecond/
picosecond rotational coherent anti-Stokes Raman scattering (fs/ps RCARS) are evaluated …

Non-uniform temperature and species concentration measurements in a laminar flame using multi-band infrared absorption spectroscopy

LH Ma, LY Lau, W Ren - Applied Physics B, 2017 - Springer
We report in situ measurements of non-uniform temperature, H 2 O and CO 2 concentration
distributions in a premixed methane–air laminar flame using tunable diode laser absorption …

Non-intrusive measurement techniques for flow characterization of hypersonic wind tunnels

PM Danehy, J Weisberger, C Johansen, D Reese… - 2018 - ntrs.nasa.gov
This manuscript describes the wide variety of optical measurement techniques for
characterizing the flow in hypersonic wind tunnels. The introduction briefly describes …

Single-shot ultrafast coherent anti-Stokes Raman scattering of vibrational/rotational nonequilibrium

CE Dedic, TR Meyer, JB Michael - Optica, 2017 - opg.optica.org
The study of internal molecular energy transfer is important for a variety of nonequilibrium
and nonthermal environments, including plasma-based manufacturing and materials …

Turbulence/chemistry interactions in a ramp-stabilized supersonic hydrogen–air diffusion flame

JA Fulton, JR Edwards, A Cutler, J McDaniel… - Combustion and …, 2016 - Elsevier
Hybrid large-eddy/Reynolds-averaged Navier–Stokes simulations of turbulence/chemistry
interactions occurring within a ramp-injected, hydrogen-fueled scramjet combustor are …

Investigation of supersonic combustion dynamics via 50 kHz CH* chemiluminescence imaging

PM Allison, K Frederickson, JW Kirik… - Proceedings of the …, 2017 - Elsevier
Time-resolved CH* chemiluminescence imaging was performed at 50 kHz in order to study
flame motion and stabilization in the axial flow direction in a dual-mode scramjet at the …

Development of a premixed combustion capability for dual-mode scramjet experiments

RD Rockwell, CP Goyne, H Chelliah… - Journal of Propulsion …, 2018 - arc.aiaa.org
Hypersonic airbreathing engines rely on scramjet combustion processes, which involve high-
speed, compressible, and highly turbulent reacting flows. The combustion environment and …

Thermalization dynamics in a pulsed microwave plasma-enhanced laminar flame

CE Dedic, JB Michael - Combustion and Flame, 2021 - Elsevier
Energy transfer in a pulsed-microwave enhanced flame is investigated using hybrid fs/ps
coherent anti-Stokes Raman scattering (CARS) to monitor both vibrational and rotational …

O2 based resonantly ionized photoemission thermometry analysis of supersonic flows

W McCord, M Gragston, D Plemmons, Z Zhang - Optics Express, 2022 - opg.optica.org
Characterization of the thermal gradients within supersonic and hypersonic flows is
essential for understanding transition, turbulence, and aerodynamic heating. Developments …