Coherent anti-Stokes Raman scattering and spontaneous Raman scattering diagnostics of nonequilibrium plasmas and flows

WR Lempert, IV Adamovich - Journal of Physics D: Applied …, 2014 - iopscience.iop.org
The paper provides an overview of the use of coherent anti-Stokes Raman scattering
(CARS) and spontaneous Raman scattering for diagnostics of low-temperature …

Measurements of T5 shock tunnel freestream temperature, velocity, and composition

PM Finch, JJ Girard, T Schwartz, CL Strand… - AIAA Journal, 2023 - arc.aiaa.org
We report on measurements of rotational and vibrational temperature, velocity, and
concentrations of nitric oxide (NO) in freestream flows at the T5 reflected shock tunnel at …

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 …

Shock-layer measurements in T5 shock tunnel hypersonic flows around a cylinder model

PM Finch, JJ Girard, T Schwartz, CL Strand… - AIAA journal, 2024 - arc.aiaa.org
We report on near-body measurements of temperature and nitric oxide (NO) concentration in
the hypersonic flows around a cylindrical test article in the Caltech T5 reflected shock tunnel …

Characterization of the T5 reflected shock tunnel freestream temperature, velocity, and composition using laser absorption spectroscopy

J Girard, PM Finch, T Schwartz, W Yu… - AIAA Propulsion and …, 2021 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2021-3525. vid We report on
measurements of rotational and vibrational temperature, velocity, and concentrations of nitric …

[HTML][HTML] Hybrid time–frequency domain dual-probe coherent anti-Stokes Raman scattering for simultaneous temperature and pressure measurements in compressible …

JE Retter, M Koll, CE Dedic, PM Danehy… - Applied Optics, 2023 - opg.optica.org
We demonstrate a hybrid time–frequency spectroscopic method for simultaneous
temperature/pressure measurements in nonreacting compressible flows with known gas …

Pressure measurements using hybrid femtosecond/picosecond rotational coherent anti-Stokes Raman scattering

SP Kearney, PM Danehy - Optics letters, 2015 - opg.optica.org
We investigate the feasibility of gas-phase pressure measurements using fs/ps rotational
CARS. Femtosecond pump and Stokes pulses impulsively prepare a rotational Raman …

Characterization of supersonic flows using hybrid fs/ps CARS

C Dedic, AD Cutler, PM Danehy - AIAA Scitech 2019 Forum, 2019 - arc.aiaa.org
Hybrid fs/ps coherent anti-Stokes Raman scattering (fs/ps CARS) has been applied to study
high-speed compressible flow. A two-probe technique has been introduced to enable the …

Coherent anti-Stokes Raman spectroscopic thermometry in a supersonic combustor

AD Cutler, PM Danehy, RR Springer, S O'byrne… - AIAA journal, 2003 - arc.aiaa.org
Nomenclature ks= thermal conductivity of wall, W/mK n= number of samples p= number of
parameters q= heat ux, W/m2 T= temperature, K t= time, s t0= time of heater start, s t1= time …

Experimental and numerical study of the laminar separation in hypersonic flow

B Chanetz, R Benay, JM Bousquet, R Bur, T Pot… - Aerospace Science and …, 1998 - Elsevier
This article is devoted to an experimental and numerical study of shock wave/boundary layer
interaction in hypersonic laminar flow (M= 10). The experimental was performed in the …