Hypersonic wind-tunnel free-flying experiments with onboard instrumentation

Mudford, Neil R., O'Byrne, Sean, Neely, Andrew, Buttsworth, David and Balage, Sudantha (2015) Hypersonic wind-tunnel free-flying experiments with onboard instrumentation. Journal of Spacecraft and Rockets, 52 1: 231-242. doi:10.2514/1.A32887


Author Mudford, Neil R.
O'Byrne, Sean
Neely, Andrew
Buttsworth, David
Balage, Sudantha
Title Hypersonic wind-tunnel free-flying experiments with onboard instrumentation
Journal name Journal of Spacecraft and Rockets   Check publisher's open access policy
ISSN 0022-4650
1533-6794
Publication date 2015-01-01
Year available 2015
Sub-type Article (original research)
DOI 10.2514/1.A32887
Open Access Status
Volume 52
Issue 1
Start page 231
End page 242
Total pages 12
Place of publication Reston, VA United States
Publisher American Institute of Aeronautics and Astronautics
Language eng
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.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Non HERDC
 
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