Accession Number:
AD0726532
Title:
An Experimental Investigation of a Nonequilibrium Corner-Expansion Flow of Ionized Argon,
Descriptive Note:
Corporate Author:
TORONTO UNIV (ONTARIO) INST FOR AEROSPACE STUDIES
Personal Author(s):
Report Date:
1970-12-01
Pagination or Media Count:
131.0
Abstract:
Experiments using a 15-degree corner-expansion flow of ionized argon, induced by a normal shock wave in a 4 in x 7 in hypervelocity shock tube, have yielded values of the recombination rate constant as a function of temperature and the variation of the plasma flow quantities with distance from the corner. The data were obtained by using mainly a Mach-Zehnder interferometer which had a nine inch diameter field of view. The interferometer had a dual frequency laser light source and was driven by either a ruby or neodymium rod. The theoretically predicted values for three-body, electron-ion-electron collisional recombination rate are in good agreement with those measured gasdynamically in a well defined flow. The measured flow quantities substantiate a previous analysis based on the method of characteristics. Author
Descriptors:
Subject Categories:
- Fluid Mechanics
- Plasma Physics and Magnetohydrodynamics