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Experimental and theoretical analysis of vibrational relaxation regions in carbon dioxide

Published online by Cambridge University Press:  28 March 2006

N. H. Johannesen ,
H. K. Zienkiewicz ,
P. A. Blythe  and
J. H. Gerrard
N. H. Johannesen
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
H. K. Zienkiewicz
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
P. A. Blythe
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
J. H. Gerrard
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
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Abstract

The density distribution in the relaxation regions of shock waves in carbon dioxide were determined in the Mach number range 1·4 to 4·0 using an interferometer. The over-all density ratios were found to agree with the theoretical final equilibrium values. Detailed analysis of the relaxation regions showed that the simple relaxation equation is inadequate, the relaxation frequency depending on departures from equilibrium as well as on temperature.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 13 , Issue 2 , June 1962 , pp. 213 - 224
Copyright
© 1962 Cambridge University Press

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References

Blackman, V. H. 1956 Vibrational relaxation in oxygen and nitrogen. J. Fluid Mech. 1, 61.Google Scholar
Blythe, P. A. 1961 Comparison of exact and approximate methods for analysing vibrational relaxation regions. J. Fluid Mech. 10, 33.Google Scholar
Greene, E. F. & Toennis, J. P. 1959 Chemische Reaktionen in Stosswellen. Darmstadt: Steinkoff Verlag.
Greenspan, W. D. & Blackman, V. H. 1957 Approach to thermal equilibrium behind strong shock waves in carbon dioxide and carbon monoxide. Bull. Amer. Phys. Soc. 2, 217.Google Scholar
Griffith, W., Brickl, D. & Blackman, V. H. 1956 Structure of shock waves in polyatomic gases. Phys. Rev. 102, 1209.Google Scholar
Herzfeld, K. F. & Litovitz, T. A. 1959 Absorption and Dispersion of Ultrasonic Waves. New York: Academic Press.
Johannesen, N. H. 1961 Analysis of vibrational relaxation regions by means of the Rayleigh line method. J. Fluid Mech. 10, 25.Google Scholar
Landolt, H. H. & Börnstein, R. 1935 Physikalisch-Chemische Tabellen, 5 ed. Table 178. Berlin: Springer.
Schwartz, R. N. 1954 The equations governing vibrational relaxation phenomena in carbon dioxide gas. NAVORD Rep. No. 3701.Google Scholar
Smiley, E. F. & Winkler, E. H. 1954 Shock tube measurements of vibrational relaxation. J. Chem. Phys, 22, 2018.Google Scholar
Witteman, W. J. 1961a Instrument for measuring density profiles behind shock waves. Rev. Sci. Instrum. 32, 292.Google Scholar
Witteman, W. J. 1961b Vibrational relaxation in carbon dioxide. J. Chem. Phys. 35, 1.Google Scholar