Hypersonic wind-tunnel free-flying experiments with onboard instrumentation
Article
Article Title | Hypersonic wind-tunnel free-flying experiments with onboard instrumentation |
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ERA Journal ID | 3580 |
Article Category | Article |
Authors | Mudford, Neil R. (Author), O'Byrne, Sean (Author), Neely, Andrew (Author), Buttsworth, David (Author) and Balage, Sudantha (Author) |
Journal Title | Journal of Spacecraft and Rockets |
Journal Citation | 52 (1), pp. 231-242 |
Number of Pages | 13 |
Year | 2015 |
Publisher | American Institute of Aeronautics and Astronautics |
Place of Publication | Reston, VA. United States |
ISSN | 0022-4650 |
1533-6794 | |
Digital Object Identifier (DOI) | https://doi.org/10.2514/1.A32887 |
Web Address (URL) | http://arc.aiaa.org/doi/abs/10.2514/1.A32887 |
Abstract | Hypersonic wind-tunnel testing with 'free-flight' models unconnected to a sting ensures that sting/wake flow interactions do not compromise aerodynamic coefficient measurements. The development of miniaturized electronics has allowed the demonstration of a variant of a new method for the acquisition of hypersonic model motion data using onboard accelerometers, gyroscopes, and a microcontroller. This method is demonstrated in a Mach 6 wind-tunnel flow, whose duration and pitot pressure are sufficient for the model to move a body length or more and turn through a significant angle. The results are compared with those obtained from video analysis of the model motion, the existing method favored for obtaining aerodynamic coefficients in similar hypersonic wind-tunnel facilities. The results from the two methods are in good agreement. The new method shows considerable promise for reliable measurement of aerodynamic coefficients, particularly because the data obtained are in more directly applicable forms of accelerations and rates of turn, rather than the model position and attitude obtained from the earlier visualization method. The ideal may be to have both methods operating together. |
Keywords | instrumentation; aerodynamics; data visualization; free flight; motion analysis; hHypersonic wind tunnels |
ANZSRC Field of Research 2020 | 519999. Other physical sciences not elsewhere classified |
400908. Microelectronics | |
400106. Hypersonic propulsion and hypersonic aerothermodynamics | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of New South Wales |
Computational Engineering and Science Research Centre | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2ww5/hypersonic-wind-tunnel-free-flying-experiments-with-onboard-instrumentation
2021
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