Examination of OH ultraviolet radiation from shock-heated air

Deborah A. Levin, Robert J. Collins, Graham V. Candler, Peter W. Erdman

Research output: Contribution to conferencePaper

Abstract

Two recent sounding rocket experiments have obtained spectral data from 200 - 400 nm of the shock heated air surrounding the vehicle under flight conditions corresponding to 3.5 km/sec for altitudes of 40 - 70 km and at 5 km/s for altitudes of 100 - 65 km. Previous analyses of the data have emphasized modeling the radiation from the NO molecular system. The chemical kinetics of OH, a trace species in the flow, and the electronic state excitation mechanisms are simpler than those for NO. Hence the comparison between modeling and data potentially provides a clearer assessment of the key flow thermochemical processes. This paper discusses the OH flow and radiation models that we have developed, comparisons with data, and the implications of this work to ongoing NO flow and radiation modeling. Additional data from the side-viewing spectrometers from the 5 km/sec flight will also be presented and analyzed here for the first time.

Original languageEnglish (US)
StatePublished - Jan 1 1995
Externally publishedYes
Event33rd Aerospace Sciences Meeting and Exhibit, 1995 - Reno, United States
Duration: Jan 9 1995Jan 12 1995

Other

Other33rd Aerospace Sciences Meeting and Exhibit, 1995
CountryUnited States
CityReno
Period1/9/951/12/95

Fingerprint

ultraviolet radiation
Ultraviolet radiation
examination
shock
Radiation
air
Air
Sounding rockets
radiation
Electronic states
Reaction kinetics
flight conditions
sounding rockets
flight
Spectrometers
modeling
vehicles
reaction kinetics
spectrometers
spectrometer

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

Cite this

Levin, D. A., Collins, R. J., Candler, G. V., & Erdman, P. W. (1995). Examination of OH ultraviolet radiation from shock-heated air. Paper presented at 33rd Aerospace Sciences Meeting and Exhibit, 1995, Reno, United States.

Examination of OH ultraviolet radiation from shock-heated air. / Levin, Deborah A.; Collins, Robert J.; Candler, Graham V.; Erdman, Peter W.

1995. Paper presented at 33rd Aerospace Sciences Meeting and Exhibit, 1995, Reno, United States.

Research output: Contribution to conferencePaper

Levin, DA, Collins, RJ, Candler, GV & Erdman, PW 1995, 'Examination of OH ultraviolet radiation from shock-heated air', Paper presented at 33rd Aerospace Sciences Meeting and Exhibit, 1995, Reno, United States, 1/9/95 - 1/12/95.
Levin DA, Collins RJ, Candler GV, Erdman PW. Examination of OH ultraviolet radiation from shock-heated air. 1995. Paper presented at 33rd Aerospace Sciences Meeting and Exhibit, 1995, Reno, United States.
Levin, Deborah A. ; Collins, Robert J. ; Candler, Graham V. ; Erdman, Peter W. / Examination of OH ultraviolet radiation from shock-heated air. Paper presented at 33rd Aerospace Sciences Meeting and Exhibit, 1995, Reno, United States.
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