Accession Number : AD0708126

Title :   SUPERSONIC EXPANSION FLOW OF AN IONIZED GAS.

Descriptive Note : Scientific Interim rept.,

Corporate Author : TORONTO UNIV (ONTARIO) INST FOR AEROSPACE STUDIES

Personal Author(s) : Igra,O.

Report Date : MAR 1970

Pagination or Media Count : 105

Abstract : In a supersonic expansion of an ionized gas, the dominant factor in describing the atomic processes is generally the recombination rate constant K sub R. Several models describing the recombination process have been reviewed in some detail. It was found that, depending on the adopted definition, different models will yield different values of K sub R for the same electron temperature and number density. A comparison between experimental and theoretical values of K sub R becomes even more complex since in the majority of the experiments K sub R is determined from the measured rate of disappearance of free electrons. These measurements give the correct 'decay coefficient', but only in certain circumstances will it reduce to the correct value of K sub R. (Author)

Descriptors :   (*MAGNETOHYDRODYNAMICS, SUPERSONIC FLOW), GAS IONIZATION, RECOMBINATION REACTIONS, ELECTRON DENSITY, EQUATIONS OF MOTION, CANADA

Subject Categories : Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE