American Journal of Applied Sciences · 2005 · 62 citations · 10 references
EngineeringAerospace EngineeringComputational EngineeringAerodynamicsComputational Fluid DynamicsFluid DynamicsAerodynamic DesignAirfoil TheoryComputational AerodynamicsExternal AerodynamicsLiftSubsonic AerodynamicsAirfoil AerodynamicsAirfoil LiftFlow Around AirfoilsFlow Over AirfoilsLift CoefficientMach NumberSkin FrictionSkin-friction Coefficient
This study presents a numerical study concerning flow control by suction and injection. The case studied is the flow field over a subsonic airfoil with four suction and injection slots on the suction side of the airfoil. Five different angles of attack, 0, 5, 10, 13.3 and 20 with the Mach number of 0.15 are studied. Three cases are studied in each angle of attack. The three cases are airfoil with surface suction, surface injection and the base airfoil. A commercial CFD code, the FLUENT, is used in this study. The effect of suction and injection on aerodynamic coefficients is investigated. The results show that the surface suction can significantly increase the lift coefficient. The injection decreases the skin friction.
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