Aerodynamics Design of Formula SAE Race Car

Abstract

This paper describes the design of an aerodynamics package of a Formula SAE car. Formula SAE rules
2014 pertaining to aerodynamics is used to design the aerodynamic package which includes the front & rear wings and
the diffuser. The aerodynamic package is designed to produce maximum downward force within the acceptable limits of
increased drag and reduced top speed. Computational Fluid Dynamics (CFD) of this aerodynamics package is also
described in this paper.
An exoskeleton body structure and its respective ground effects is developed taking into account several factors to
present an optimum body model as a final result. These factors include but are not limited to weight, cost, wind drag
resistance, functionality and aesthetics.
Computational model of the vehicle body and diffuser was prepared using Solid works. Subsequently, several shapes &
sizes were modelled and optimisation was done on the final design. Aerofoil selection was done from UIUC Aerofoil
Database[1] to design the wings. Wings designed are analysed in XFLR[2] and Solid works to check the flow conditions.
Diffuser is designed and analysed in Solid works.