Advances in Automobile Engineering
Open Access

Design and CFD analysis of a high downforce rear wing in a Formula SAE racing car

International Conference and Exhibition on Automobile Engineering

September 01-02, 2015 Valencia, Spain

Diego A Ballen-Daza and Fernando Martini Catalano

University of Sao Paulo, Brazil

Posters-Accepted Abstracts: Adv Automob Eng

Abstract :

A design and analysis in CFD of a rear wing that generates high downforce is presented. Its dimensions are set up under the 2015 rules of the Formula SAE World Championship. Most circuits of this competition are characterized by sharp and accentuated curves demanding a vehicle with special ability for turning as fast as possible. In order to obtain high performance, is necessary a car with a special aerodynamic package that creates high downforce to generate sufficient grip between the tires and asphalt of the track. Until 2014 the aerodynamics dimensions was not strongly regulated, permitting to create aerodynamic devices with large frontal areas to obtain high downforce. Now, the 2015 regulations constrain the size of the wings, avoiding the implementation of wings with these characteristics. The main idea in our work is to show a way of recovering the downforce lost by decreasing of size, through optimization of the lift coefficient using different strategies, like creation of a special aerodynamic profile, optimization positioning, implementation of Gurney flap, vortex generators, beam wing and slats, among others. In addition, are described all of geometric and physical parameters used in a CFD simulation, and a general analysis with the overall results found.

Biography :

Email: diegoaballen@usp.br