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Thermal equilibration behind an ionizing shock

Published online by Cambridge University Press:  28 March 2006

H. Wong and
D. Bershader
H. Wong
Affiliation:
Department of Aeronautics and Astronautics, Stanford UniversityPresent address: Lockheed Palo Alto Research Laboratory.
D. Bershader
Affiliation:
Department of Aeronautics and Astronautics, Stanford University
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Abstract

The physical mechanisms underlying the relaxation process leading to thermal equilibrium behind ionizing shock waves in argon have been studied through use of optical techniques. The non-equilibrium condition in the relaxation region was investigated experimentally by measuring the shift in the fringes due to a change in the refractive index of the medium with a Mach–Zehnder interferometer. Both electron- and mass-density profiles from the shock front to the equilibrium region were determined. The experimental work has been supplemented by a theoretical analysis of the ionization mechanism to explain the measured profiles and relaxation times.

Information

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 26 , Issue 3 , November 1966, pp. 459 - 479
Copyright
© 1966 Cambridge University Press

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