Comparison of theory with experiment for the bow shock ultraviolet rocket flight

D. A. Levin, G. V. Candler, R. J. Collins, P. W. Erdman, E. Zipf, P. Espy, C. Hewlett

Research output: Contribution to conferencePaper

Abstract

Comparison is made between the results obtained from a state-of-the-art thermo-chemical nonequilibrium flowfield and radiation code and data obtained from a recent experiment. The experiment obtained the first measurements of ultraviolet radiation from the shock- heated gas in the nose region of a 0. 1016 m nose radius vchicle traveling at about 3. 5km/sec at altitudes between 40 to 70 km. The pre-flight computations agree at low altitudes, but under predict the data at high altitudes. Post flight flowfield and radiation sensitivity studies suggests improvements for the models at high altitudes. Specifically, excitation mechanisms that contribute to production of NO gamma band emission need to be revised. Altitude dependence of the radiation observed from the OH radical can be understood in terms of nonequilibrium chemistry in the flow

Original languageEnglish (US)
StatePublished - Jan 1 1991
Externally publishedYes
EventAIAA 26th Thermophysics Conference, 1991 - Honolulu, United States
Duration: Jun 24 1991Jun 26 1991

Other

OtherAIAA 26th Thermophysics Conference, 1991
CountryUnited States
CityHonolulu
Period6/24/916/26/91

ASJC Scopus subject areas

  • Mechanical Engineering
  • Aerospace Engineering

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  • Cite this

    Levin, D. A., Candler, G. V., Collins, R. J., Erdman, P. W., Zipf, E., Espy, P., & Hewlett, C. (1991). Comparison of theory with experiment for the bow shock ultraviolet rocket flight. Paper presented at AIAA 26th Thermophysics Conference, 1991, Honolulu, United States.