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Published January 11, 2021 | public
Book Section - Chapter

Krypton Tagging Velocimetry (KTV) Investigation in the Caltech T5 Reflected-Shock Tunnel


Results are presented for a Krypton Tagging Velocimetry (KTV) investigation of the freestream flow of the T5 reflected shock tunnel at Caltech. This KTV scheme utilizes two-photon excitation at 216.67 nm with a pulsed dye laser, followed by re-excitation at 769.4547 nm with a continuous laser diode. Results are presented for experiments performed in 97% N₂ / 3% Kr and 99% N₂ / 1% Kr gas mixtures at a unit Reynolds number of approximately 4×10⁶ 1/m and a reservoir mass-specific enthalpy of approximately 5 MJ/kg. Agreement between the KTV derived velocity measurement and the computational results is excellent, within the uncertainty of the experiment.

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© 2021 by Nicholaus Joseph Parziale. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission.

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August 20, 2023
October 23, 2023