Flow-tagging velocimetry for hypersonic flows using fluorescence of nitric oxide

P. M. Danehy; S. O'Byrne; A. F.P. Houwing

doi:10.2514/6.2001-302

Flow-tagging velocimetry for hypersonic flows using fluorescence of nitric oxide

P. M. Danehy, S. O'Byrne, A. F.P. Houwing

Research output: Contribution to conference › Paper › peer-review

6 Citations (Scopus)

Abstract

We investigate a new type of flow-tagging velocimetry technique for hypersonic flows. The technique involves exciting a thin line of nitric oxide molecules with a laser beam and then, after some delay, acquiring an image of the displaced line. One component of velocity is determined from the time of flight. This method is applied to measure the velocity profile in a Mach 8.5 laminar, hypersonic boundary layer in the Australian National University's T2 free-piston shock tunnel. The velocity is measured with an uncertainty of approximately 2%. Comparison with a CFD simulation of the flow shows reasonable agreement.

Original language	English
DOIs	https://doi.org/10.2514/6.2001-302
Publication status	Published - 2001
Event	39th Aerospace Sciences Meeting and Exhibit 2001 - Reno, NV, United States Duration: 8 Jan 2001 → 11 Jan 2001

Conference

Conference	39th Aerospace Sciences Meeting and Exhibit 2001
Country/Territory	United States
City	Reno, NV
Period	8/01/01 → 11/01/01

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10.2514/6.2001-302

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abstract = "We investigate a new type of flow-tagging velocimetry technique for hypersonic flows. The technique involves exciting a thin line of nitric oxide molecules with a laser beam and then, after some delay, acquiring an image of the displaced line. One component of velocity is determined from the time of flight. This method is applied to measure the velocity profile in a Mach 8.5 laminar, hypersonic boundary layer in the Australian National University's T2 free-piston shock tunnel. The velocity is measured with an uncertainty of approximately 2%. Comparison with a CFD simulation of the flow shows reasonable agreement.",

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AU - O'Byrne, S.

AU - Houwing, A. F.P.

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N2 - We investigate a new type of flow-tagging velocimetry technique for hypersonic flows. The technique involves exciting a thin line of nitric oxide molecules with a laser beam and then, after some delay, acquiring an image of the displaced line. One component of velocity is determined from the time of flight. This method is applied to measure the velocity profile in a Mach 8.5 laminar, hypersonic boundary layer in the Australian National University's T2 free-piston shock tunnel. The velocity is measured with an uncertainty of approximately 2%. Comparison with a CFD simulation of the flow shows reasonable agreement.

AB - We investigate a new type of flow-tagging velocimetry technique for hypersonic flows. The technique involves exciting a thin line of nitric oxide molecules with a laser beam and then, after some delay, acquiring an image of the displaced line. One component of velocity is determined from the time of flight. This method is applied to measure the velocity profile in a Mach 8.5 laminar, hypersonic boundary layer in the Australian National University's T2 free-piston shock tunnel. The velocity is measured with an uncertainty of approximately 2%. Comparison with a CFD simulation of the flow shows reasonable agreement.

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T2 - 39th Aerospace Sciences Meeting and Exhibit 2001

Y2 - 8 January 2001 through 11 January 2001

ER -

Flow-tagging velocimetry for hypersonic flows using fluorescence of nitric oxide

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