Estudo de caso de projeto e análise aerodinâmico da asa traseira de um veículo de alto desempenho

Bruno Ricardo Massucatto Padilha, Guilherme Barufaldi, Roberto G. A. Silva
2021 Blucher Engineering Proceedings   unpublished
One of the most important trade-offs of the aerodynamic design of a competition vehicle is the balance between drag and downforce. On the one hand, the vehicle must be able to achieve high speeds, especially on straight lines, and this means that the drag force must kept as low as possible. On the other hand, in order to reach high turning performance, the aerodynamic devices must produce high levels of downforce, and the price paid is a substantial increase in drag force. To obtain the best
more » ... sible aerodynamic design -and the best possible trade-off between drag and downforce -engineers usually resort to knowledge and tools from the aeronautical industry. In this paper, we present a case study about the development of a the rear wing of a high performance vehicle currently being designed for the Brazilian Endurance Championship (P1 category). The design process is divided into two parts: the 2-D analysis, in which the wing profile is selected; and the 3-D analysis, in which the wing shape is conceived. In both phases, analytical and computational tools were employed, including computational fluid dynamics (CFD) software. The paper also describes the utilization of a Gurney flap, considerations about airfoils, Reynolds number, and how the relation between drag and downforce is evaluated.
doi:10.5151/simea2021-pap74 fatcat:gkfubadnu5bgtj7br6ytzvfmpq