Effects of Initial Disturbance Amplitude on Hypersonic Crossflow Instability Conference Paper uri icon

abstract

  • © 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved. Boundary layer stability and laminar-turbulent transition are examined on the HIFiRE-5 38.1% wind tunnel geometry. The parabolized stability equations and spatial BiGlobal theory are used to calculate the stationary crossflow and corresponding secondary instabilities, respectively, as they are efficient and accurate techniques to model the transition process. Stationary crossflow disturbance initial amplitudes are varied, and the effect on the downstream amplitude evolution and the secondary instabilities is investigated. Findings suggest stationary crossflow saturation onset location and saturation amplitude changes with different initial amplitudes. The initial amplitude changes the secondary instability neutral point, and the linear development of the secondary instabilities is slightly changed.

author list (cited authors)

  • Moyes, A., Kocian, T. S., Mullen, D., & Reed, H. L.

citation count

  • 8

publication date

  • January 2018