Accession Number:

ADA330595

Title:

Transport of Air Plasma.

Descriptive Note:

Final technical rept. 15 Aug 93-31 Aug 97,

Corporate Author:

STANFORD UNIV CA HIGH TEMPERATURE GASDYNAMICS LAB

Personal Author(s):

• Kruger, Charles H.

Report Date:

1997-09-01

Pagination or Media Count:

27.0

Abstract:

Several optical diagnostic techniques were developed to interrogate important plasma parameters including temperatures and species concentrations. In particular, a new technique of electron number density measurements based on measurements of the nonequilibrium population of the predissociative C state of NO was devised. It was found that the three-body NO recombination rate proposed by Dunn and Kang appears to be too slow by a factor 100, and that the rate proposed by Gupta et al. or Park is also too slow, by about a factor 10. This result has significant implications for the development of techniques to create and maintain elevated electron number densities in air plasmas.

Descriptors:

• *RECOMBINATION REACTIONS
• *NITROGEN OXIDES
• REACTION KINETICS
• PLASMAS(PHYSICS)
• ELECTRON DENSITY
• ELECTRON ENERGY
• ELECTRONIC STATES
• BAROMETRIC PRESSURE

Subject Categories:

• Physical Chemistry
• Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE