Multi-spectral shocklayer radiance from a hypersonic slender body

Deborah A. Levin, Graham V Candler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a methodology for the calculation of the IR shocklayer radiance from a slender hypersonic vehicle. An overlay technique that has been successfully employed for chemically reacting hypersonic compressed and expanding flows has been extended to accurately model the vibrational state distributions of NO, CO, water and CO2, potential shocklayer radiators in the mid-wave infra-red. The spectral predictions show that radiation from shock heated ambient CO2 will be an important contribution at most altitudes and speeds slower than 3. 5 km/sec. A detailed vibrational state-specific model of CO2 excitation has been incorporated with the flow modeling using an overlay technique. Comparisons of the spatial distributions of CO2 vibrational states with a corresponding Boltzmann distribution at the translational temperature show that there are substantial differences in the populations. These predictions are important for the design of an upcoming sounding rocket experiment.

Original languageEnglish (US)
Title of host publication7th AIAA/ASME Joint Thermophysics and Heat Transfer Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - Jan 1 1998
Event7th Joint Thermophysics and Heat Transfer Conference, AIAA/ASME 1998 - Albuquerque, United States
Duration: Jun 15 1998Jun 18 1998

Other

Other7th Joint Thermophysics and Heat Transfer Conference, AIAA/ASME 1998
CountryUnited States
CityAlbuquerque
Period6/15/986/18/98

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