Modeling of excited oxygen in post normal shock waves

Kyle M. Hanquist, Iain D. Boyd

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

6 Scopus citations

Abstract

The successful development of hypersonic vehicles requires a detailed knowledge of the flow physics around the vehicle. Specifically, an understanding of the thermochemical nonequilibrium behavior is crucial for this flight regime. The hypersonic flight regime involves an extremely high level of energy, so a small error in the modeling of the energy processes can result in drastic changes in the vehicle design, which motivates modeling the physics involved at a high-fidelity. Recent progress is presented in an ongoing effort to model the excited states of oxygen in post-normal shock waves using computational fluid dynamics. One-dimensional post normal shock flow calculations are carried out using state-of-the-art thermochemical nonequilibrium models. Two-temperature and electronic master equation coupling models are adopted in the present work and discussed in detail. Different approaches of modeling the energy transfer from each mode are also presented. The approaches are assessed using a set of existing experiments where the vibrational temperature was measured. The concentrations of excited states of atomic oxygen determined by the electronic master equation coupling model are compared to Boltzmann distributions.

Original languageEnglish (US)
Title of host publication2018 Joint Thermophysics and Heat Transfer Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105524
DOIs
StatePublished - 2018
Externally publishedYes
Event12th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, 2018 - [state] GA, United States
Duration: Jun 25 2018Jun 29 2018

Publication series

Name2018 Joint Thermophysics and Heat Transfer Conference

Conference

Conference12th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, 2018
Country/TerritoryUnited States
City[state] GA
Period6/25/186/29/18

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics

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