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Establishment of the Bow-Wave in the Supersonic Flow of Carbon Dioxide Past a Sphere

Published online by Cambridge University Press:  07 June 2016

H. K. Zienkiewicz
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
I. D. Malloch
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
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Summary

An experimental study of bow-wave trajectories for a sphere in CO2 has been made in a shock tube, using a drum-camera-schlieren technique, for incident shock Mach numbers of 2·4, 2·8 and 4·0. Results show that vibrational relaxation has only a slight effect on the bow-wave formation time but significantly affects the stand-off distance in steady flow.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society. 1968

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References

1. Johannesen, N. H., Zienkiewicz, H. K., Blythe, P. A. and Gerrard, J. H. Experimental and theoretical analysis of vibrational relaxation regions in carbon dioxide. Journal of Fluid Mechanics, Vol. 13, pp. 213-224, June 1962.CrossRefGoogle Scholar
2. Johannesen, N. H. and Zienkiewicz, H. K. Application of time-resolved interferometry to shock-tube performance studies. Journal of the Royal Aeronautical Society, Vol. 69, pp. 406-7, June 1965.CrossRefGoogle Scholar
3. Davies, L. Bow-shock establishment and stagnation-point pressure measurement for a blunt-nosed body at supersonic speeds. ARC Current Paper 776, 1965.Google Scholar
4. Ambrosio, A. and Wortman, J. Stagnation-point shock-detachment distance for flow around spheres and cylinders in air. Journal of the Aerospace Sciences, Vol. 29, p. 875, July 1962.Google Scholar
5. Syshchikova, M. P., Berezkina, M. K. and Semenov, A. N. Formation of frontal shock waves at blunt bodies in shock tubes. Soviet Physics-Technical Physics, Vol. 9, pp. 1549-53, May 1965.Google Scholar
6. Miles, J. W., Mirels, H. and Wang, H. E. Time required for establishing a detached bow shock. AIAA Journal, Vol. 4, pp. 1127-8, June 1966.CrossRefGoogle Scholar