Quentin Devorsine

Abstract

This work presents a comparative aerodynamic analysis of different sidepod concepts for a Formula SAE vehicle, aiming to support the Icarus UFRJ team in improving its car’s aerodynamic efficiency. The methodology is based on Computational Fluid Dynamics (CFD) using the open-source software OpenFOAM. The spatial discretization process was performed usingblockMeshandsnappyHexMesh tools, while 3D transient simulations were conducted with thepimpleFoamsolver. The aerodynamic study comprised three fundamental stages: a mesh convergence study to ensure results’ independence; the validation of the numerical methodology through flow simulations over spheres, with results compared against classical literature correlations; and a comparative analysis of three distinct sidepod geometries. The results allowed for the performance evaluation of each concept through the drag coefficient (Cd) and theC d ·Aproduct. It is concluded that while complex geometries may present lower intrinsicC d values, a reduced frontal area plays a crucial role in the total drag force. This work establishes a methodological foundation for future integrations of radiator models as porous media and full-vehicle simulations

Advising

Advisor: Anjos, G. R.