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Further results on the over-all density ratios of shock waves in carbon dioxide

Published online by Cambridge University Press:  28 March 2006

H. K. Zienkiewicz
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
N. H. Johannesen
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
J. H. Gerrard
Affiliation:
Department of the Mechanics of Fluids, University of Manchester

Abstract

Previous results on the over-all density ratio of shock waves in CO2, confirming experimentally the theoretical equilibrium value, have been extended to a shock Mach number of 7·3. The discrepancy between our results and earlier Princeton results approaches 18% at a Mach number of 7. Possible reasons for this are discussed, with particular reference to the interferometer technique, but no explanation has been found.

Type
Research Article
Copyright
© 1963 Cambridge University Press

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References

Craven, E. C. 1945 A study of the comparative method of determining gaseous refractivities. Proc. Phys. Soc. 57, 97.Google Scholar
Griffith, W. C. 1961 Vibrational relaxation times. Article in Fundamental Data obtained from Shock Tube Experiments. London: Pergamon Press.
Johannesen, N. H., Zienkiewicz, H. K., Blythe, P. A. & Gerrard, J. H. 1962 Experimental and theoretical analysis of vibrational relaxation regions in carbon dioxide. J. Fluid Mech. 13, 213.Google Scholar