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A Driver Gas Contamination Probe for Shock Tunnels

Published online by Cambridge University Press:  07 June 2016

R. J. Stalker
R. J. Stalker*
Affiliation:
Australian National University, Canberra
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Summary

A probe is described which will detect contamination, by driver gas, of the test section flow in a shock tunnel. It is a continuously sampling device, which responds to the difference between the ambient speed of sound in the driver gas and the test gas. The probe is compact, easy to construct, and can be used for detection of driver gas in routine testing. The theory of the probe is explained, and experiments are reported which confirm its effectiveness.

Type
Research Article
Information
Aeronautical Quarterly , Volume 19 , Issue 2 , May 1968 , pp. 183 - 191
Copyright
Copyright © Royal Aeronautical Society. 1968

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References

1. Kaegi, E. M. and Muntz, E. P. Driver-driven gas mixing and its effect on shock tunnel test time. Proceedings of the Third Hypervelocity Techniques Symposium, University of Denver, p. 88, 1964.Google Scholar
2. Bird, K. D., Martin, J. F., and Bell, T. J. Recent developments in the use of the hypersonic shock tunnel as a research and development facility. Proceedings of the Third Hypervelocity Techniques Symposium, University of Denver, p. 7, 1964.Google Scholar
3. Copper, J. A., Miller, H. R., and Hameetman, F. J. Correlation of uncontaminated test durations in shock tunnels. Proceedings of the Fourth Hypervelocity Techniques Symposium, University of Denver, p. 274, 1965.Google Scholar
4. Ball, H. W. Driver gas detection in a shock tunnel. AIAA Journal, Vol. 4, p. 1111, June 1966.CrossRefGoogle Scholar
5. Stalker, R. J. A mass flow probe for use in short duration hypersonic flows, p. 271. Agardograph 68, “High Temperature Aspects of Hypersonic Flow”, edited by Nelson, W. C., Pergamon Press, London, 1964. Also NPL Aero Report 1004.Google Scholar
6. Stalker, R. J. Use of argon in a free piston shock tunnel. Presented at AIAA Plasmadynamics Conference, March 1966. AIAA Paper 66-169.CrossRefGoogle Scholar