Lifting Surfaces Performance and Mitigation of Vortex Induced Vibrations (VIC)

Abstract

In this project, the main idea is to study the advantages and disadvantages of adding a high-lift device to a wing. And, to study the risk of Vortex Induced Vibrations (VIV) formation in both structures. For it we will perform a performance analysis of an airfoil wing and compare it with the performances obtained when adding a high-lift device. Before starting to analyze the impact of adding a high-lift device, we will first analyze the wing by itself, and we will observe the different performance values. So then, we can compare them to the results of the analysis of adding a high-lift device, where we can observe how the high-lift device affects the overall aerodynamics of the set. Making a conclusion on the advantages or disadvantages of adding a high-lift device. The profile of the wing we will be analyzing is a cambered NACA 4412 profile, while in the high-lift device, we will use a cambered NACA 2412. To perform this analysis, we will use the ANSYS Fluent software to perform a CFD study. The analysis will be conducted in a turbulence flow condition, so a high Reynolds number fluid will be used. After performing the CFD analysis of the wing, and the wing+high-lift device, we will perform an aeroelastic analysis of the wing and the high-lift device in 3D, where we will study the risk of Vortex Induced Vibrations (VIV) in both structures. For this we will perform a modal analysis of the structures, a time dependent CFD analysis to observe the generation of Karman vortices related to the Strouhal number; analyzing buffeting risk. After that, we will perform a redesign of the structures to eliminate the risk of Vortex Induced Vibrations(VIV).