Effects of installation location of fluidic oscillators on aerodynamic performance of an airfoil

초록

This study numerically investigates the effects of the installation location of fluidic oscillators on the aerodynamic performance of a NACA 0015 airfoil. The oscillators are embedded in the suction surface of the airfoil. An unsteady flow analysis was performed using three-dimensional Reynolds-averaged Navier-Stokes equations with a shear stress transport turbulence model. The angle of attack was varied from 0 to 24 degrees, and four installation locations between the leading and trailing edges of the airfoil were used to analyze the lift and drag performance. The installation location with the highest lift coefficient depended on the angle of attack (and thus the location of flow separation), but greater drag reduction was obtained when the fluidic oscillators were installed closer to the leading edge regardless of the angle of attack. This location of the oscillators also produced the highest lift-to-drag ratio. (C) 2020 Elsevier Masson SAS. All rights reserved.

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