Modeling of radiation events from a side jet atmospheric interaction at high altitudes

Li Zheng, Zhong Jiaqiang, Deborah A. Levin

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

Abstract

Highly nonequilibrium radiation transitions from electronically excited states generated by collisions of atomic oxygen with reaction control system thruster plumes is modeled for different altitude and vehicle velocity conditions. The flow field results are obtained using a Navier-Stokes solver to obtain the flow inside the nozzle and the direct simulation Monte Carlo method is used to simulate the chemically reacting, three-dimensional plume-atmospheric interaction. The frequency of radiation events are compared for two types of overlay methods and with direct simulation in DSMC. The distribution function for collisional relative velocities is explored and used to interpret the sensitivity of the number of radiation events to free stream altitude, temperature, velocity, and to the radiation mechanism activation energy.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
Pages2215-2253
Number of pages39
StatePublished - Dec 21 2006
Externally publishedYes
Event9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings - San Francisco, CA, United States
Duration: Jun 5 2006Jun 8 2006

Publication series

NameCollection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
Volume4

Other

Other9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
Country/TerritoryUnited States
CitySan Francisco, CA
Period6/5/066/8/06

ASJC Scopus subject areas

  • Engineering(all)

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