Tandem Airfoil Vortex Interaction in Deep-Stall

Laurent Hétru (1) , Sébastien Kolb (1) , Olivier Montagnier (1) , Thierry M. Faure (1)

1 CReA - Centre de recherche de l'armée de l'air

Deep-stall is a flow regime which may occur in tandem airfoil configurations at high angle of attack. It results from a detached flow on the downstream airfoil and a drop of the lift, rendering the elevators ineffective for a potential recovery. The present numerical simulation describes vortices interaction with the downstream airfoil and its effect on change in lift for a given tandem airfoil configuration.

Domaines: Mécanique des fluides [physics.class-ph]; Mécanique des fluides [physics.class-ph]

Laurent Hétru, Sébastien Kolb, Olivier Montagnier, Thierry M. Faure. Tandem Airfoil Vortex Interaction in Deep-Stall. 14th European Turbulence Conference, Sep 2013, France. pp.ID 243. ⟨hal-00910969⟩