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Tandem airfoil vortex interaction in deep-stall
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.Author(s):
Laurent Hétru
Centre de Recherche de l'Armée de l'air (CReA)
France
Sébastien Kolb
Centre de Recherche de l'Armée de l'air (CReA)
France
Olivier Montagnier
Centre de Recherche de l'Armée de l'air (CReA)
France
Thierry M. Faure
Centre de Recherche de l'Armée de l'air (CReA)
France