Optical investigation of transient phenomena in hypersonic shock tunnels

R. Hruschka; G. Park; H. Kleine; S. O'Byrne

doi:10.1117/12.823722

Optical investigation of transient phenomena in hypersonic shock tunnels

R. Hruschka^*, G. Park, H. Kleine, S. O'Byrne

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

Three different applications of high-speed near-resonantly enhanced shearing interferometry to visualise and investigate hypersonic wake flows are described. In the present application, two axisymmetric objects, a sphere and a model of a planetary entry vehicle, are placed in a Mach 10 shock tunnel flow. The influence of different mounting structures on the wake flow of the entry vehicle is demonstrated. Planar laser induced fluorescence (PLIF) thermometry is used as an additional tool to monitor base flow temperatures. The unsteadiness of the wake flow of the sphere is compared to the flow unsteadiness around the entry-probe. The velocity in selected parts of the wake flow field is also determined with the help of a time-resolved time-of-flight method.

Original language	English
Article number	71260J
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7126
DOIs	https://doi.org/10.1117/12.823722
Publication status	Published - 2009
Externally published	Yes
Event	28th International Congress on High-Speed Imaging and Photonics - Canberra, Australia Duration: 9 Nov 2008 → 14 Nov 2008

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10.1117/12.823722

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title = "Optical investigation of transient phenomena in hypersonic shock tunnels",

abstract = "Three different applications of high-speed near-resonantly enhanced shearing interferometry to visualise and investigate hypersonic wake flows are described. In the present application, two axisymmetric objects, a sphere and a model of a planetary entry vehicle, are placed in a Mach 10 shock tunnel flow. The influence of different mounting structures on the wake flow of the entry vehicle is demonstrated. Planar laser induced fluorescence (PLIF) thermometry is used as an additional tool to monitor base flow temperatures. The unsteadiness of the wake flow of the sphere is compared to the flow unsteadiness around the entry-probe. The velocity in selected parts of the wake flow field is also determined with the help of a time-resolved time-of-flight method.",

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author = "R. Hruschka and G. Park and H. Kleine and S. O'Byrne",

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language = "English",

volume = "7126",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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note = "28th International Congress on High-Speed Imaging and Photonics ; Conference date: 09-11-2008 Through 14-11-2008",

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TY - JOUR

T1 - Optical investigation of transient phenomena in hypersonic shock tunnels

AU - Hruschka, R.

AU - Park, G.

AU - Kleine, H.

AU - O'Byrne, S.

PY - 2009

Y1 - 2009

N2 - Three different applications of high-speed near-resonantly enhanced shearing interferometry to visualise and investigate hypersonic wake flows are described. In the present application, two axisymmetric objects, a sphere and a model of a planetary entry vehicle, are placed in a Mach 10 shock tunnel flow. The influence of different mounting structures on the wake flow of the entry vehicle is demonstrated. Planar laser induced fluorescence (PLIF) thermometry is used as an additional tool to monitor base flow temperatures. The unsteadiness of the wake flow of the sphere is compared to the flow unsteadiness around the entry-probe. The velocity in selected parts of the wake flow field is also determined with the help of a time-resolved time-of-flight method.

AB - Three different applications of high-speed near-resonantly enhanced shearing interferometry to visualise and investigate hypersonic wake flows are described. In the present application, two axisymmetric objects, a sphere and a model of a planetary entry vehicle, are placed in a Mach 10 shock tunnel flow. The influence of different mounting structures on the wake flow of the entry vehicle is demonstrated. Planar laser induced fluorescence (PLIF) thermometry is used as an additional tool to monitor base flow temperatures. The unsteadiness of the wake flow of the sphere is compared to the flow unsteadiness around the entry-probe. The velocity in selected parts of the wake flow field is also determined with the help of a time-resolved time-of-flight method.

KW - Base flow

KW - Hypersonic flow

KW - Resonantly enhanced shearing interferometry

KW - Shock tunnel

KW - Wake flow

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U2 - 10.1117/12.823722

DO - 10.1117/12.823722

M3 - Conference article

AN - SCOPUS:65849137501

SN - 0277-786X

VL - 7126

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

M1 - 71260J

T2 - 28th International Congress on High-Speed Imaging and Photonics

Y2 - 9 November 2008 through 14 November 2008

ER -

Optical investigation of transient phenomena in hypersonic shock tunnels

Abstract

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