Micro geradores de vórtice: análise em MVF e LBM para um perfil aerodinâmico para pás eólicas

Abstract

Vortex generators are flow control devices, they work by mixing the free stream of flow with slower speed close to solid surface, increasing lift in exchange for a small increase in drag. This work proposes a vortex generator with a thin aerodynamic profile in contrast to the trapezoidal fin pattern, decreasing the induced drag. The analysis is done in a computational way through the Ansys software and Lattice Boltzmann Method, modeling the profiles and boundary conditions, both configurations will be of counter-rotational arrangements, allowing the comparison of drag and lift for different angles of attack, created in a non-thin airfoil profile and flatblack, often found in wind turbine blades, where the application of flow control devices is essential to obtain optimal operations conditions and the greatest lift.