@inproceedings{5380adf12f664b9eb69c4cfd674e518a,
title = "Direct numerical simulations of hypersonic boundary-layer transition for a slender cone",
abstract = "Direct Numerical Simulations (DNS) were carried out to investigate the laminar-turbulent transition process for a slender (2.5◦ half-angle) straight (right) cone at Mach 6 and zero angle of attack. The slender cone geometry of the experiments in the Boeing/AFOSR Mach 6 Quiet Tunnel (BAM6QT) at Purdue University was used for the numerical investigations. The simulation results indicate that the so-called fundamental breakdown was the dominant nonlinear mechanism in the downstream part of the slender cone geometry where “hot” streaks have recently been observed in the BAM6QT experiments. Contours of the time-averaged Stanton number obtained from DNS also exhibited the formation of “hot” streaks similar to the ones detected in the experiments. The results for the slender cone provide additional evidence that the laminar turbulent transition process and the associated “hot” streak development for the “quiet” flow conditions in the BAM6QT facility is dominated by the fundamental breakdown mechanism.",
author = "Christoph Hader and Madlen Leinemann and Fasel, {Hermann F.}",
note = "Funding Information: This work was supported by AFOSR Grant FA9550-19-1-0208, with Dr. Ivett Leyva serving as the program manager. Computer time was provided by the US Army Engineering Research and Development Center (ERDC) under 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 many fruitful discussions with K. Gray, Dr. B. Chynoweth and Professor S. Schneider (Purdue University) and would like to thank A. Haas (University of Arizona) for providing the LST Solver. Publisher Copyright: {\textcopyright} 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.; AIAA AVIATION 2020 FORUM ; Conference date: 15-06-2020 Through 19-06-2020",
year = "2020",
doi = "10.2514/6.2020-2993",
language = "English (US)",
isbn = "9781624105982",
series = "AIAA AVIATION 2020 FORUM",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "AIAA AVIATION 2020 FORUM",
}