Abstract:
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The present paper focuses on applying the Active Flow Control (AFC) technology on the Selig-Donovan 7003 (SD7003) airfoil at Reynolds number 60,000, the idea is to employ synthetic jets in order to modify the lift and drag forces acting on the airfoil. In this study two angles of attack (AoA) are considered, two (AFC) parameters the jet momentum coefficient and forcing frequency are studied. All the CFD simulations are performed in two dimensions and using the Spalart-Allmaras turbulent model. The primary motivation behind the current examination is to find out the optimum frequency and momentum coefficient of the pulsating jets to minimize the drag and maximize the lift coefficients. Results are showing that, as the angle of attack increases, the application of the (AFC) technology becomes more effective, allowing to considerably increase the airfoil efficiency. For example, for (AoA) of 14 degrees the airfoil efficiency was increased by 98% versus the non-actuated case |