@inproceedings{76a2e1d086114e858cdb30c6a3ff8310,
title = "Computation of hypersonic flow around an isolated roughness element using kinetic methods",
abstract = "Direct Simulation Monte Carlo (DSMC) was utilized to calculate hypersonic flow over an isolated roughness element. Two separate data-driven methods were employed to identify the least-stable global flow eigenmode downstream of the roughness element, revealing a connection between oscillations present in the shock layer, detached shear layer, and vortical structures behind the roughness. Furthermore, significant oscillations were observed in the cross-flow velocity component of the eigenmode. The analysis also demonstrated the impact of the shock layer on the least stable eigenmode of the flow.",
author = "Angelos Klothakis and Kamil Dylewicz and Vassilis Theofilis and Levin, {Deborah A.}",
note = "This work was supported by the Office of Naval Research under grant no. N00014-1-20-2195, {"}Multi-scale modelling of unsteady shock-boundary layer hypersonic flow instabilities{"} (Dr Eric Marineau, PO). The authors also acknowledge the UKTC and EPSRC for providing computational time on the UK supercomputing facility ARCHER2 through project EP/R029326/1. Additionally, the Texas Advanced Computing Center (TACC) at UT Austin is acknowledged for providing high-performance computing resources on the Frontera supercomputer under the Leadership Resource Allocation (LRAC) award CTS20001, which has contributed to the research results presented in this paper.; 32nd International Symposium on Rarefied Gas Dynamics, RGD 2022 ; Conference date: 04-07-2022 Through 08-07-2022",
year = "2024",
month = feb,
day = "8",
doi = "10.1063/5.0187703",
language = "English (US)",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
number = "1",
editor = "Myong, {Rho Shin} and Kun Xu and Jong-Shinn Wu",
booktitle = "AIP Conference Proceedings",
edition = "1",
}