Numerical investigation of the laminar-turbulent transition process for the HIFiRE-1 Flight Test

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

Abstract

Direct Numerical Simulations (DNS) were carried out to investigate the laminar-turbulent boundary-layer transition process for a 7 half-angle straight (right) cone at Mach 5.2 and zero angle of attack. The flow conditions used in the simulations matched the conditions at different time instances during the ascent trajectory of the Hypersonic International Flight Research Experimentation (HIFiRE-1) flight tests as closely as possible. The wall was considered to be isothermal with a temperature distribution considering the heating of the nose region of the cone. Primary and secondary instability investigations were carried out which have indicated that the so-called fundamental breakdown is may be viable path to transition. A strong fundamental resonance was found for a wide range of azimuthal wavenumbers and the various unit Reynolds numbers considered here. A highly-resolved “controlled” fundamental breakdown DNS confirmed that fundamental resonance is a viable nonlinear mechanisms that can lead to laminar-turbulent transition for the flight conditions investigated here.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum 2022
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624106316
DOIs
StatePublished - 2022
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022 - San Diego, United States
Duration: Jan 3 2022Jan 7 2022

Publication series

NameAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022
Country/TerritoryUnited States
CitySan Diego
Period1/3/221/7/22

ASJC Scopus subject areas

  • Aerospace Engineering

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