ACTIVE CONTROL OF TURBULENT FLOW SEPARATION OVER A FLAPPED AIRFOIL USING FLUIDIC OSCILLATOR

Abstract

Flow detachment from lifted bodies like airfoils causes a remarkable decrease in its aerodynamic performance. Therefore, the current work aims to recover the performance by considering a fluidic oscillator device that adds momentum energy near the separation zone to recover the separated boundary layer. Since the flow is turbulent, RANS modeling was used, and the problem was simulated using OpenFOAM software. Validation is an essential step to select the adequate turbulence model to detect separation by comparing the results with experimental and numerical published work. Actuation parameters were investigated to optimize the performance.