With the ever-increasing price of petrol and diesel, the car manufacturers are forced to make some revolutionary changes in designing their cars to make them more fuel efficient. As a result all the modern cars released today by the different brands of car manufacturers are nowadays sharing some common aspects of designing to implement the scientifically accepted shapes and features that are called aerodynamics. That is one of the reasons why most modern cars today tend to look the same.
The Aim of Aerodynamics in Relation to Fuel Efficiency
The experts at the Hyundai dealer Deland explained that making a car design based on aerodynamics will ensure that the car faces as little as possible resistance from the air while it drives through. The more a car becomes aerodynamically efficient, the less fuel it will use while driving at a certain speed. Then comes the factor that, the faster the car will move, the more it will become important to keep the air resistance and drag low to the minimum amount possible.
The aerodynamic efficiency of the shape that is given to a car is measured by how co-efficient is to the drag which is more popularly known as its Cd figure. But one use this Cd figure by itself to calculate the aerodynamic drag of a car because it does not consider the frontal area of the car into its consideration. The frontal area on the contrary is the place where takes place the total cross-section of the car, or in other words it is the total amount of space that it occupies the most when we see it from the front. A full-size car and a larger version of the model would need lot more power to propel while driving at a higher speed because it has a larger frontal area.
In the current days car manufacturers are mostly use wind tunnels to see the behavioral prototype of their car. With the help of a wind tunnel, the car gets anchored down to the ground giving it more grip on the road while a stream of air blows past it that simulates the car to meet with favorable conditions that helps it driving forward.
Any car is primarily connected to a host of instruments that are part of this wind tunnel that record how much down-force or air lift is being generated at both the end of the car. The flow of air that passes over the car becomes visible because of small tufts of wool attached to the body of the car. There the center of pressure becomes the most effective point on the bodyshell of the car where the wind gets the maximum scope to act.
Center of Gravity
At the Hyundai Deland dealership, we were shown how the relative positions of the center of pressure in a car and its center of gravity play critical roles in determining the overall stability of the car. If the center of pressure along with the center of gravity both stand high up on the car, then it is possible that a side wind might make the car roll, but if that crosses a certain amount, in extreme cases, it may even make the car turn over.