Generating aerodynamic downforce for the wheels on front axle of a car is much more difficult task than rear axle. This paper, submitted to special issue Energies “Future Road Vehicle Aerodynamics”, presents an unusual solution increase cars with covered wheels, use elastic splitter. The effect inflatable splitter forces and moments was studied in DrivAer passenger fast sports car, Arrinera Hus...

For a passenger vehicle, approximately 25% of the total aerodynamic drag originates from wheels, making aerodynamics wheels significant factor for overall performance vehicle. To understand complex flow field created by rotational condition and geometry these bluff-bodies, numerical simulations are often used. However, computations frequently performed in domains that replicate open road condit...

It is well known that platoons of closely spaced passenger cars can reduce their aerodynamic drag yielding substantial savings in energy consumption and reduced emissions as a system. Most published research has focused on identical vehicles which arguably be justified by some evidence geometric variety little to no effect the overall flow characteristics three or more. much benefit from platoo...

The aerodynamic optimization process of cars requires multiple iterations between aerodynamicists and stylists. Response Surface Modeling Reduced-Order are commonly used to eliminate the overhead due Computational Fluid Dynamics, leading faster iterations. However, a primary drawback these models is that they can work only on parametrized geometric features were trained with. This study evaluat...

Computational fluid dynamics is implemented to investigate the influence of the wheel contact patch on the global car aerodynamics. Two main aspects of the problem are the contact step and patch shape. Three important parameters: step height, cut angle, and tire tread shape are taken into consideration. For validations of the numerical results, the experimental data are also considered. The obt...