@inproceedings{097a88c233224a02806ea441f2fa468c,
title = "Numerical Investigation of Cross-Flow Instability for a Supersonic Swept Wing with a Biconvex Airfoil",
abstract = "The linear and nonlinear disturbance development for a supersonic (infinite) swept wing with a biconvex airfoil are investigated using a linear/nonlinear disturbance flow formulation solver based on the compressible Navier-Stokes equations. In addition, a biglobal stability solver was developed and is employed here to allow linear stability investigations for baseflows strongly dependent on two spatial directions. Results for M = 2 and a chord based Reynolds number Re = 1.45 · 106 obtained from the linear disturbance flow computations are compared with conventional linear stability theory. The nonlinear development of steady cross-flow modes were computed with the nonlinear disturbance flow formulation solver to reach the nonlinear saturation of the cross-flow mode. The nonlinearly saturated, new baseflow (for secondary instability analysis) is strongly dependent on the wall normal and wave propagation direction and therefore requires a biglobal stability analysis, while the primary cross-flow vortex direction can be considered homogeneous. The biglobal baseflow was constructed using the original baseflow and Fourier transformed disturbance flow data from the nonlinear disturbance flow computation. In addition, preliminary temporal biglobal stability computations are presented.",
author = "Haas, {Anthony P.} and Christoph Hader and Fasel, {Hermann F.}",
note = "Funding Information: This work was supported by ARO Grant W911NF-20-S-0006, with Dr. Matthew Munson 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 Army Research Office or the U.S. Government. Publisher Copyright: {\textcopyright} 2022, American Institute of Aeronautics and Astronautics Inc, AIAA. 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 = "10.2514/6.2022-1074",
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",
}