The influence of forward-facing steps on the amplification of disturbances in transonic flows is studied numerically. The main goal is to find a function for an additional amplification factor ΔN that can be incorporated into the eN method. In the present study, both two-dimensional direct numerical simulation of disturbances as well as linear stability theory are used to gain detailed information on the flow. Good agreement between N-factor results from direct numerical simulation and linear stability theory is obtained. Subsonic and slightly supersonic results show differences in the flow topology and in the shape of the N-factor curve, but effective ΔN factors are in the same order of magnitude. Presented as Paper 2013-0080 at the 51st AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, Grapevine, TX, 7-10 January 2013
Impact of Forward-Facing Steps on Laminar-Turbulent Transition in Transonic Flows
AIAA journal ; 53 , 9
2015
Aufsatz (Zeitschrift)
Englisch
British Library Conference Proceedings | 2013
|Active and Natural Suction at Forward-Facing Steps for Delaying Laminar–Turbulent Transition
Online Contents | 2017
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