Mach 18 flow velocimetry with 100-kHz KTV and PLEET in AEDC Tunnel 9

Krypton Tagging Velocimetry (KTV) and Picosecond Laser Electronic Excitation Tagging (PLEET) velocimetry at a 100-kHz rate were demonstrated in Mach 18 flow conditions at the Arnold Engineering Development Center (AEDC) Tunnel 9 employing a burst-mode laser system and a custom optical parametric osc...

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Bibliographic Details
Published in:Applied optics (2004) 2023-02, Vol.62 (6), p.A25
Main Authors: Jiang, Naibo, Hsu, Paul S, Grib, Stephen W, Slipchenko, Mikhail, Shekhtman, David, Parziale, Nick J, Smith, Mike S, Spicer, Addison J, Roy, Sukesh
Format: Article
Language:English
Subjects:
Flow velocity
Hypersonic flow
Krypton
Marking
Optical Parametric Oscillators
Parametric amplifiers
Tunnels
Velocimetry
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Summary:Krypton Tagging Velocimetry (KTV) and Picosecond Laser Electronic Excitation Tagging (PLEET) velocimetry at a 100-kHz rate were demonstrated in Mach 18 flow conditions at the Arnold Engineering Development Center (AEDC) Tunnel 9 employing a burst-mode laser system and a custom optical parametric oscillator (OPO). The measured freestream flow velocities from both KTV and PLEET agreed well with the theoretical calculation. The increase in repetition rate provides better capability to perform time-resolved velocimetry measurements in hypersonic flow environments.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.477203