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 that can be incorporated into the 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 -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 -factor curve, but effective factors are in the same order of magnitude.
Impact of Forward-Facing Steps on Laminar-Turbulent Transition in Transonic Flows
AIAA Journal ; 53 , 9 ; 2504-2511
2015-06-30
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Impact of Forward-Facing Steps on Laminar-Turbulent Transition in Transonic Flows
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