The passive control of flow-separation at averaged Reynolds Number (Re=3.42×105) using self-adapting flexible-flaps in the upper side of the wing, is presented. The two-way Fluid-Structure Interaction (FSI) in an elastic-layer up on the airfoil (NACA 0012) is investigated numerically by Coupling between the Transient Structural and Fluid Flow (Fluent) in ANSYS-Workbench14.0. During the fluid-structure interaction, the transient deformation of the elastic-layer provokes the modification of the flow topology at large-scale. There are reductions of the size and intensity of the vortex-shedding and an increase in the Strouhal number. This explains the increase of the lift-to-drag ratio. The study of the flap flexibility shows that the deformation of the elastic-layer and the variation of aeronautical efforts are inversely proportional to the Young Modulus.
Hafien, C., Bourehla, A., & Bouzaiane, M. (2016). Passive Separation Control on a Symmetric Airfoil via Elastic-Layer. Journal of Applied Fluid Mechanics, 9(5), 2569-2580. doi: 10.18869/acadpub.jafm.68.236.25141
MLA
C. Hafien; A. Bourehla; M. Bouzaiane. "Passive Separation Control on a Symmetric Airfoil via Elastic-Layer", Journal of Applied Fluid Mechanics, 9, 5, 2016, 2569-2580. doi: 10.18869/acadpub.jafm.68.236.25141
HARVARD
Hafien, C., Bourehla, A., Bouzaiane, M. (2016). 'Passive Separation Control on a Symmetric Airfoil via Elastic-Layer', Journal of Applied Fluid Mechanics, 9(5), pp. 2569-2580. doi: 10.18869/acadpub.jafm.68.236.25141
VANCOUVER
Hafien, C., Bourehla, A., Bouzaiane, M. Passive Separation Control on a Symmetric Airfoil via Elastic-Layer. Journal of Applied Fluid Mechanics, 2016; 9(5): 2569-2580. doi: 10.18869/acadpub.jafm.68.236.25141
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