Instantaneous temperature imaging in hypersonic flows using laser-induced fluorescence of high rotational-quantum-number transitions

P. M. Danehy; C. D. Hill; S. O'Byrne; J. S. Fox; A. F.P. Houwing

doi:10.2514/6.2000-2591

Instantaneous temperature imaging in hypersonic flows using laser-induced fluorescence of high rotational-quantum-number transitions

P. M. Danehy, C. D. Hill, S. O'Byrne, J. S. Fox, A. F.P. Houwing

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

1 Citation (Scopus)

Abstract

This paper investigates the use of one-line laser-induced fluorescence (LIF) thermometry of nitric oxide to study hypersonic flows generated by free-piston shock tunnels. This method has several advantages including lower cost, simpler set up, and reduced errors from optical thickness compared to two-line LIF thermometry. However, comparisons between one-line and two-line fluorescence thermometry indicate that the method is unreliable in air flows. The method is used to provide qualitative temperature maps in the separated flow region forward of a blunt fin attached to a flat plate in a Mach 6.4 freestream.

Original language	English
DOIs	https://doi.org/10.2514/6.2000-2591
Publication status	Published - 2000
Event	21st Aerodynamic Measurement Technology and Ground Testing Conference 2000 - Denver, CO, United States Duration: 19 Jun 2000 → 22 Jun 2000

Conference

Conference	21st Aerodynamic Measurement Technology and Ground Testing Conference 2000
Country/Territory	United States
City	Denver, CO
Period	19/06/00 → 22/06/00

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10.2514/6.2000-2591

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Danehy, P. M., Hill, C. D., O'Byrne, S., Fox, J. S., & Houwing, A. F. P. (2000). Instantaneous temperature imaging in hypersonic flows using laser-induced fluorescence of high rotational-quantum-number transitions. Paper presented at 21st Aerodynamic Measurement Technology and Ground Testing Conference 2000, Denver, CO, United States. https://doi.org/10.2514/6.2000-2591

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title = "Instantaneous temperature imaging in hypersonic flows using laser-induced fluorescence of high rotational-quantum-number transitions",

abstract = "This paper investigates the use of one-line laser-induced fluorescence (LIF) thermometry of nitric oxide to study hypersonic flows generated by free-piston shock tunnels. This method has several advantages including lower cost, simpler set up, and reduced errors from optical thickness compared to two-line LIF thermometry. However, comparisons between one-line and two-line fluorescence thermometry indicate that the method is unreliable in air flows. The method is used to provide qualitative temperature maps in the separated flow region forward of a blunt fin attached to a flat plate in a Mach 6.4 freestream.",

author = "Danehy, {P. M.} and Hill, {C. D.} and S. O'Byrne and Fox, {J. S.} and Houwing, {A. F.P.}",

year = "2000",

doi = "10.2514/6.2000-2591",

language = "English",

note = "21st Aerodynamic Measurement Technology and Ground Testing Conference 2000 ; Conference date: 19-06-2000 Through 22-06-2000",

}

Danehy, PM, Hill, CD, O'Byrne, S, Fox, JS & Houwing, AFP 2000, 'Instantaneous temperature imaging in hypersonic flows using laser-induced fluorescence of high rotational-quantum-number transitions', Paper presented at 21st Aerodynamic Measurement Technology and Ground Testing Conference 2000, Denver, CO, United States, 19/06/00 - 22/06/00. https://doi.org/10.2514/6.2000-2591

Instantaneous temperature imaging in hypersonic flows using laser-induced fluorescence of high rotational-quantum-number transitions. / Danehy, P. M.; Hill, C. D.; O'Byrne, S. et al.
2000. Paper presented at 21st Aerodynamic Measurement Technology and Ground Testing Conference 2000, Denver, CO, United States.

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

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AU - Hill, C. D.

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AU - Fox, J. S.

AU - Houwing, A. F.P.

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AB - This paper investigates the use of one-line laser-induced fluorescence (LIF) thermometry of nitric oxide to study hypersonic flows generated by free-piston shock tunnels. This method has several advantages including lower cost, simpler set up, and reduced errors from optical thickness compared to two-line LIF thermometry. However, comparisons between one-line and two-line fluorescence thermometry indicate that the method is unreliable in air flows. The method is used to provide qualitative temperature maps in the separated flow region forward of a blunt fin attached to a flat plate in a Mach 6.4 freestream.

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Y2 - 19 June 2000 through 22 June 2000

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Instantaneous temperature imaging in hypersonic flows using laser-induced fluorescence of high rotational-quantum-number transitions

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