Accession Number:

AD0266922

Title:

NON-EQUILIBRIUM RADIATION FROM SHOCK HEATED NITROGEN AND A DETERMINATION OF THE RECOMBINATION RATE

Descriptive Note:

Corporate Author:

AVCO EVERETT RESEARCH LAB EVERETT MASS

Personal Author(s):

Report Date:

1961-06-01

Pagination or Media Count:

1.0

Abstract:

The radiation emitted by shock heate nitrog n is stu ied in the wavelength range 3300 to 7100 angstrom units at an equilibrium temperature from 6000 to 6800 K and densities from .01 to .20 atmosp er s. The various radiating bands are identified by spectroscopic and photometric techniques. The radiation consists of bands from various nitrogen systems. The radiation overshoot observed at the shock front relaxes very rapidly to a uilibrium level. Comparison is made between the calculations and observations. It is concluded that one of the coupling schemes is a realistic approxi tion. The integral non-equilibrium radiation and the time of occurrence of peak radiation behind the shock front are also examined. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE