@inproceedings{43e5e9eae9f24b37ad8d6ae667fb2384,
title = "Numerical investigation of the laminar-turbulent transition process for the HIFiRE-1 Flight Test",
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.",
author = "Massimo Biella and Christoph Hader and Fasel, {Hermann F.}",
note = "Funding Information: This work was supported by AFOSR Grant FA9550-19-1-0208, with Dr. Sarah Popkin serving as the program manager. Computer time was provided by the University of Arizona High Performance Computing (HPC) center and the Department of Defense (DoD) High Performance Computing Modernization Program (HPCMP). The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the Air Force Office of Scientific Research or the U. S. Government. The authors acknowledge the fruitful discussions with Dr. R. Kimmel and Dr. M. Borg (Air Force Research Laboratory) and for providing the trajectory and wall temperature data. Publisher Copyright: {\textcopyright} 2022, American Institute of Aeronautics and Astronautics Inc.. All rights reserved.; AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022 ; Conference date: 03-01-2022 Through 07-01-2022",
year = "2022",
doi = "10.2514/6.2022-1708",
language = "English (US)",
isbn = "9781624106316",
series = "AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2022",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "AIAA SciTech Forum 2022",
}