What is Aerodynamics? Its place in automotive sector

Aerodynamics examines the effect of air on force as a science. Today, it has gained importance and improved in aircraft and automobile sector.
Since the first vehicles were produced only for the purpose of cutting the human foot m, the aerodynamics were not very important and the cars produced in this period were not much different from the phone booth. As the need intensified, manufacturers began to strive to increase engine power, minimize losses due to air resistance, and produce economic vehicles.

The aerodynamic values must be calculated well in order to make the vehicle produced economical and speedy.
-Thermodynamic Losses
-Transmission Losses
-Rolling Losses
-Response Losses
Studies to Reduce the Effect of Air Resistance on Vehicle
The friction of the air on the vehicle is so smooth and uninterrupted. For this purpose (1) Door windows and headlamps to be designed on a surface with vehicle body (2) Aerodynamic properties of the side mirrors (3) More slanted front and rear windows design (4) Expanding the rubber grooves (5) Covering the fenders (6) Placing the skirts between the front and rear wheels (7) Flattening the recesses and protrusions under the vehicle by the camouflage (8).
Nowadays, air resistance coefficient is made by the above studies;
For passenger cars: 0.25 araçe
Busses: 0.5
In Motorcycle: 0.4A
In Truck: 0.65A
has been reduced.
The presence of an open window on the road vehicle when traveling, the proximity of a load of 20 kg in the trunk, or the replacement of the used tires with thicker tires will result in a 10-12% increase in the air resistance coefficient.
Footnote: The record for minimizing aerodynamic values is in the C111 series of Mercedes by 0.182.
Lifting Force Formed by Air on the Automobile
Hoses, typhoons, such as dangerous winds due to a reason to create pressure upwards and upward pressure to create any kind of an upward movement. This type of effect occurs in fast cars. The pressure on the vehicle's speed decreases, falling pressure on the vehicle suction effect This pressure causes the wheels of the vehicle to touch the ground and may even cause the vehicle to roll or roll over when cornering. For this reason, the infrastructure of the race car is given a spur, but still not exactly in front of this effect. The fast-paced race car glues the wind to the ground, on the other hand under the vehicle to remove the air vehicle acts. In passenger cars, the danger is not in this dimension, but there is a risk of skidding.Porsche found a practical solution to the problem by increasing the weight in the 911 model it produced from 1966 to 1969. A solution is the use of Spoiler (Spoiler).
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