Hostname: page-component-7479d7b7d-pfhbr Total loading time: 0 Render date: 2024-07-09T11:27:05.214Z Has data issue: false hasContentIssue false
  • English
  • Français

Electron density and ionization rate in thermally ionized gases produced by medium strength shock waves

Published online by Cambridge University Press:  28 March 2006

Y. Manheimer-Timnat  and
W. Low
Y. Manheimer-Timnat
Affiliation:
Scientific Department, Israel Ministry of Defence
W. Low
Affiliation:
Department of Physics, The Hebrew University, Jerusalem
Get access Rights & Permissions [Opens in a new window]

Abstract

A method, based on the measurement of attenuation of microwaves, which allows the electron density and the ionization rate of shock-heated gases to be obtained, is described. Results obtained for air in the shock Mach range 8·2-10·4, and for nitrogen containing 0·25% oxygen in the range 7·4-8·8, show that the electron density is in agreement with theoretical calculations based on thermodynamic equilibrium. Ionization time measurements in air are presented in this range and these results extend the measurements of Niblett & Blackman (1958) to a lower Mach range.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 6 , Issue 3 , October 1959 , pp. 449 - 461
Copyright
© 1959 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bethe, H. A. 1942 Rep. Dep. Commerce, PB-27307.
Bethe, H. A. & Teller, E. 1940 Rep. Ballistic Res. Lab., Aberdeen Proving Ground, X-117.
Birk, M., Erez, A., Manheimer, Y. & Nahmani, G. 1954 C.R. Acad. Sci., Paris, 238, 654.
Campbell, A. W., Malin, M. E., Boyd, T. J. Jr. & Hull, J. A. 1956 Rev. Sci. Instrum. 27, 567.
Gilmore, F. R. 1955 Rand. Corp. Res. Memorandum, RM-1543.
Glass, I. I., Martin, W. A. & Patterson, G. N. 1953 Rep. Inst. Aerophysics, Univ. Toronto, UTIA, no. 2.
Glick, H. S., Klein, J. J. & Squire, W. 1957 J. Chem. Phys. 27, 850.
Hammerling, P., Shine, W. W. & Kivel, B. 1957 J. Appl. Phys. 28, 760.
Lamb, L. & Lin, S. C. 1957 J. Appl. Phys. 28, 754.
Lin, S. C. 1952 Thesis, Cornell University.
Lin, S. C., Resler, E. L. & Kantrowitz, A. R. 1955 J. Appl. Phys. 26, 95.
Loeb, L. B. 1955 Basic Processes of Gaseous Electronics. Berkeley: University of California Press.
Low, W. & Manheimer, Y. 1959 Proc. IX Int. Astronautical Congress. Vienna: Springer (in the Press).
Margenau, H. 1946 Phys. Rev. 69, 508.
Massey, H. S. W. & Burhop, E. H. S. 1952 Electronic and Ionic Impact Phenomena. Cambridge University Press.
Niblett, B. & Blackman, V. H. 1958 J. Fluid Mech. 4, 191.
Petschek, H. E. & Byron, S. 1957 Ann. Phys. 1, 270.
Udelson, B. J., Creedon, J. E. & French, J. C. 1957 J. Appl. Phys. 28, 717.
Waldron, H. F. 1958 Rep. Inst. Aerophysics, Univ. Toronto, UTIA, no. 50.
Woolley, H. W. 1956 NACA TN 3271.