Today, design offices developing new forms of car body, the main focus automotive aerodynamics. Manufacturers of the first vehicle in the beginning of the last century drew attention to it, but primarily improved performance. The main obstacle, which appeared on the way designers of machinery, counter air flow increases proportionally with increasing vehicle speed. With some calculations, which takes into account its own weight of the car, where the calculated aerodynamic drag of the car when accelerating from 60 km / h to 120 km per hour is increased by 4 times. Consider Audi cars have speed limits to the value of 250 km / h, are forced to spend about 190 hp only to overcome the resistance of air flow, and the speed increases up to the value of 300 km / hr must be expended capacity of about 330 horsepower.
Automotive aerodynamics, Coefficient Cx
As for the coefficient Cx (eng) is exclusively the experimental value, which characterizes the automotive aerodynamics performance of any automobile body. During daily operation of the car, the main characteristic of aerodynamics is the resistance value of the air flow. This characteristic reflects the direct dependence amount spent fuel vehicle while driving. In the course of numerous experiments, the designers have concluded that the reduction of car fuel consumption is only possible in two ways: reducing the cross section of cars or modify the external geometry of the car body, giving it the highest form of “drops” (Ct value decreases). It will be recalled that there is a vertical air pressure, it is only directed downward and presses the car to the road, but is directed upwards. As for fans of high speeds, they usually turn to tuning studio and installed on your car modern aerodynamic body kits and spoilers.
Today, car manufacturers give priority to the issue of the aerodynamics of their cars. Therefore, almost every design offices have modern scientific equipment, which is based in the wind tunnel, without which it is a part of a car company. Car designers are using this invention to address the issue of modernization of aerodynamic parameters of modern passenger cars and reduce their resilience Automotive aerodynamics coefficient Cx is very far ahead. Currently the production cars have the value of 0.35, and in advanced sports development was significantly lower Automotive aerodynamics coefficient Cx parameter to 0.26, we can assure you that this is not the limit.
Automotive aerodynamics, Coefficient Cx
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