SIMULAÇÃO DE ESCOAMENTOS SOBRE AEROFÓLIOS DE ALTA SUSTENTAÇÃO UTILIZANDO SOFTWARES LIVRES

Abstract

. The present work shows part of the results obtained in the final work of the first author, and the main objective is to obtain the coefficients of force on airfoils with high camber for the development of aircraft wings for aerodesign competition. Then, it presents a methodology that uses three open source softwares: FreeCAD to design the airfoil, Salome-Meca to generate the unstructured mesh over airfoils with high camber and OpenFOAM to perform the calculations of Computational Fluid Dynamics and obtain the force coefficients. The results obtained in the present work are compared with those obtained in a structured mesh and in experiments, for two airfoils, NACA 4415 and EPPLER 423. The simulations presented convergence and are close to the references, reaching a difference around 6.75% for the airfoil EPPLER 423. Finally, with the use of free software it is possible to obtain results very close to material experiments, being important tools in the development of projects.