Supersonic combustion of hydrogen in Mach 2 flows over an axisymmetric model
Paper
Paper/Presentation Title | Supersonic combustion of hydrogen in Mach 2 flows over an axisymmetric model |
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Presentation Type | Paper |
Authors | Zhao, Mengmeng (Author), Buttsworth, David (Author) and Choudhury, Rishabh (Author) |
Journal or Proceedings Title | Proceedings of the 22nd AIAA International Space Planes and Hypersonics Systems and Technologies Conference |
Number of Pages | 9 |
Year | 2018 |
Place of Publication | United States |
ISBN | 9781510875425 |
9781624105777 | |
Digital Object Identifier (DOI) | https://doi.org/10.2514/6.2018-5252 |
Web Address (URL) of Paper | https://arc.aiaa.org/doi/abs/10.2514/6.2018-5252 |
Web Address (URL) of Conference Proceedings | https://arc.aiaa.org/doi/book/10.2514/MHYP18 |
Conference/Event | 22nd AIAA International Space Planes and Hypersonics Systems and Technologies Conference (AIAA 2018) |
Event Details | 22nd AIAA International Space Planes and Hypersonics Systems and Technologies Conference (AIAA 2018) Event Date 17 to end of 19 Sep 2018 Event Location Orlando, United States |
Abstract | An external axisymmetric model featuring a cavity flame-holder fuelled by hydrogen was adopted for the study of the supersonic combustion in Mach 2 flows. The self-sustained hydrogen flames ignited by a spark gap igniter were detected using two optical techniques: an intensified camera attachment coupled with a high speed camera with a narrow-band-pass filter centred at 310 nm for detection of OH* chemiluminescence; and high-speed schlieren imaging for flow visualization. The spark ignition was identified on the schlieren images which also enabled visualisation of changes in the flow structure associated with the combustion. Local concentrations of the radiating radical OH* were determined using the inverse Abel transformation based on the ICCD images and calibration against a light source of known radiance. The combustion flow was reconstructed numerically using a CFD Solver, Eilmer4 in an axisymmetric configuration coupled with a detailed H2/O2 oxidation chemistry mechanism and a OH* chemiluminescence sub-scheme. The maximum magnitude of the results for the OH* chemiluminescence simulations demonstrated reasonable agreement with measurements. |
Keywords | bandpass filters, chemiluminescence, computational fluid dynamics, high speed cameras, hydrogen, light sources, visualization |
ANZSRC Field of Research 2020 | 400106. Hypersonic propulsion and hypersonic aerothermodynamics |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Mechanical and Electrical Engineering |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4xvy/supersonic-combustion-of-hydrogen-in-mach-2-flows-over-an-axisymmetric-model
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