Revisiting unresolved dynamic stall phenomena

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 10 Jan 2000Publisher:American Institute of Aeronautics and Astronautics (AIAA)Journal:38th Aerospace Sciences Meeting and Exhibit

Authors: Lars E. Ericsson;

doi: 10.2514/6.2000-144 , 10.2514/2.2722

Revisiting unresolved dynamic stall phenomena

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Abstract

In a series of dynamic stall tests, performed 1968 with a finite-span wing model having a NACA-0012 airfoil section, very unusual C,(a) characteristics were obtained by varying the Reynolds number as well as using fixed and free boundary layer transition. Through the research that took place the following 30 years it is now possible to define the flow phenomena responsible for the observed extreme variations of the dynamic stall characteristics.

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