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Drag is a force that acts parallel to and in the same direction as the airflow. The drag coefficient of an automobile measures the way the automobile passes through the surrounding air. When automobile companies design a new vehicle they take into consideration the automobile drag coefficient in addition to the other performance characteristics ...
In most high efficiency models or in vehicles with low drag coefficients, a very small grille will already be built into the vehicle's design, eliminating the need for a grille block. The grille in most production vehicles is generally designed to maximize air flow through the radiator where it exits into the engine compartment.
Drag coefficients in fluids with Reynolds number approximately 10 4 [1] [2] Shapes are depicted with the same projected frontal area. In fluid dynamics, the drag coefficient (commonly denoted as: , or ) is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment, such as air or water.
The aerodynamics gave the best drag coefficient of any vehicle at the time. [citation needed] On its launch, its main competitors in Europe included the Fiat 128, Ford Escort, Renault 6 and Vauxhall Viva. The GS's aerodynamics enabled the car to make the best of the available power, but when introduced, the car was considered underpowered.
The lowest of the three cars' drag coefficient was 0.19, [2] an achievement even by today's standards. For each of the cars, Alfa Romeo provided a five-speed gearbox and a powerful four-cylinder engine that produced more than 90 horsepower (67 kW), good enough to propel the car to a top speed of 125 mph (201 km/h). [3]
Mercedes-Benz reported a drag coefficient of 0.19; [7] for comparison, the production vehicle with the lowest ever C d value was the GM EV1, at 0.195. While the Bionic had a much larger internal volume than the EV1, the Bionic's larger frontal area made the EV1 more aerodynamic overall, as drag is a product of the area and the drag coefficient.
Trending Now: 4 Affordable Car Brands You Won’t Regret Buying in 2024. Don’t let the small size fool you — the Civic’s well-designed interior gives you plenty of room for passengers and cargo.
The Airflow was the first full-size American production car to use streamlining as a basis for building a sleeker automobile, one less susceptible to air resistance. Chrysler made a significant effort at a fundamental change in automotive design with the Chrysler Airflow, but it was ultimately a commercial failure due to a lack of market ...