Self-consistent Flow-radiation Coupling for Hypersonic Atmospheric Entry

Sung Min Jo, Alessandro Munafò, Marco Panesi

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

Abstract

This study aims to model collisional-radiative transitions in hypersonic shock layers in a self-consistent manner. To achieve this purpose, sets of electronic state-resolved chemical kinetics are constructed for N2-O2 and N2-CH4 mixtures to study hypersonic atmospheric entry conditions to Earth and Titan. The constructed model is then applied to two-dimensional axisymmetric flows around a 3 m radius sphere including afterbody region. As a comparative group, the conventional quasi-steady-state model is considered with a reduced-order model closure on top of the electronic state-resolved approach to have consistency between the two models. The result shows that; (1) the electronic populations are not in the quasi-steady-state (QSS) near the shoulder and the afterbody and (2) this causes underprediction of the afterbody radiative heating.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum and Exposition, 2024
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624107115
DOIs
StatePublished - 2024
EventAIAA SciTech Forum and Exposition, 2024 - Orlando, United States
Duration: Jan 8 2024Jan 12 2024

Publication series

NameAIAA SciTech Forum and Exposition, 2024

Conference

ConferenceAIAA SciTech Forum and Exposition, 2024
Country/TerritoryUnited States
CityOrlando
Period1/8/241/12/24

ASJC Scopus subject areas

  • Aerospace Engineering

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