@inproceedings{43aa59c887e24ee9bba1e3626c952814,
title = "On the temporal evolution in laminar separated boundary layer shock-interaction flows using DSMC",
abstract = "Unsteadiness of a shock dominated hypersonic flow including shock wave boundary layer interactions and flow separation over a double cone, double- wedge and{\textquoteright}tick{\textquoteright} configurations are investigated. The time accurate DSMC solutions combined with global linear stability and the residuals algorithm provide an opportunity to determine the damping rate, frequency and amplitude function of the least damped eigenmode. The residuals algorithm also permits predicting the corresponding steady state solution at a fraction of the DSMC simulation cost. It is observed that the time required to reach steady state is conditioned by the separation region and the shock wave boundary layer interaction. The oscillatory behavior of the residuals close to convergence in the double wedge calculation for the reacting air case can be explained by the existence and slow temporal decay of traveling linear global modes.",
author = "Ozgur Tumuklu and Levin, {Deborah A.} and Vassilis Theofilis",
note = "Funding Information: The research is being performed at the University of Illinois Urbana-Champaign is supported by the Air Force Office of Scientific Research through AFOSR Grant No. FA9550-11-1-0129 with a subcontract award number 2010-06171-01 to UIUC. The work of Vassilis Theofilis is supported by AFOSR Grant No. FA9550-17-1-0115. This research is also a part of the Blue Waters sustained-petascale computing project, which is supported by the National Science Foundation (awards OCI-0725070 and ACI-1238993) and the state of Illinois. Blue Waters is a joint effort of the University of Illinois at Urbana-Champaign and its National Center for Supercomputing Applications. We are also grateful for the computational resource provided on ERDC Topaz, AFRL Spirit and Thunder. Publisher Copyright: {\textcopyright} 2017 by G.E. Schneider.; 55th AIAA Aerospace Sciences Meeting ; Conference date: 09-01-2017 Through 13-01-2017",
year = "2017",
doi = "10.2514/6.2017-1614",
language = "English (US)",
series = "AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "AIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting",
}