Strict regulations on CO2 emissions are forcing manufacturers to electrify cars. This significantly affects the consumption of the vehicle, which has a great impact on the owner’s wallet, but also limits the vehicle’s range. However, aerodynamics also affects consumption, so manufacturers and owners use different aerodynamic solutions that are sometimes a bit strange. Porsche is the leader in one of them.
Researchers at the University of Stuttgart are working on a vibrating car, using a number of methods to improve the vehicle’s aerodynamics. “We are investigating whether it is possible to reduce the value of the Cd coefficient at certain points of the car body by systematically introducing vibrations. If you introduce a pulse into the air flow around the car with a speaker, it can affect its separation behavior when energized,” said Professor Andreas Wagner, head of the automotive engineering program at the university.
There are numerous methods by which aerodynamics can be favorably influenced. “A good Cd value can be achieved in different ways. If, for example, you want to optimize the rear end, you can change the height of the tailgate and the diffuser in the chassis,” says Marcel Straub, lead engineer for aerodynamics and thermal processes at Porsche Engineering.
Porsche believes that the generated sound and vibrations should not damage the construction of the vehicle, so it is necessary to prevent the sound from affecting the comfort of the passengers while driving. Until this solution becomes a reality, Porsche will continue to work on active aerodynamic elements.
Source: Porsche
