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An approximate measurement of the ionization time behind shock waves in air

Published online by Cambridge University Press:  28 March 2006

Bryan Niblett  and
Vernon H. Blackman
Bryan Niblett
Affiliation:
Palmer Physical Laboratory, Princeton University
Vernon H. Blackman
Affiliation:
Palmer Physical Laboratory, Princeton University Now at Giannini Research Laboratory, Santa Ana, California.
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Abstract

A hydromagnetic shock tube has been used to obtain an approximate measurement of the time to reach equilibrium ionization behind shock waves of Mach number 11 to 17, moving into air at a pressure of about 1 mm of mercury. This ionization time decreases with increasing Mach number. Experimental results are presented as a graph of the ionization time vs Mach number. The principal source of error in the measurements is the attenuation of the shock and the results indicate a lower limit for the ionization time in air.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 4 , Issue 2 , June 1958 , pp. 191 - 194
Copyright
© Cambridge University Press

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References

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