Aerodynamics Car: Things That Complicated But Needed


When cars were first made in the 1800s, no one could think that to move, the name of the train engine that had to deal with air. At that time, perhaps people are still fascinated with how an object on wheels can move themselves without having drawn a horse or donkey, but it is changing rapidly.



Aerodynamics Car: Things That Complicated But Needed

When the science of fluid dynamics coercing applies only to the aircraft, which also recently found by the Wright Brothers, there are some people began to think, ‘is not affected by the air car is dilabraknya?’ When internal combustion engines are increasingly making ‘wagon’ to move fast, things are beginning to think about, including aerodynamics. The essence of good aerodynamics is how can a car can have wind resistance / air as low as possible. In addition, if possible, as well as degrading the sound of wind gathered ‘hit by a’ car, and avoid lifting power when the car drove. Surely it would be very dangerous if the car lifted and lose traction.

Chrysler Airflow

Back to the history of how aerodynamic flourish. Over time, the need to shorten the travel time is also higher. This forced the car makers to rack my brain how to meet these needs. Surely engine that first note. But apparently not enough because there are other things that are a barrier: Airflow.

Aerodynamics-Chrysler-AirflowIt is called aerodynamics is of concern because of the improvements in the value of an aerodynamic, not just cars become more ‘slippery’ time facing the oncoming air resistance, but also make it more fuel efficient, as well as stable at high speed.
Make the car more aerodynamic without having to follow the shape of horse-drawn wagon. The aerodynamics experts, who had worked for aircraft maker, swerved and moved designing cars. In 1921, German scientist and inventor, Edmund Rumple made a car that looks like a boat named Rumple Trope auto. That first car has aerodynamic value much better than other cars at that time. Its odd shape seemed less attractive so the project was halted in the middle of the road.

Aerodynamics-flow-of-airBut the results started to show in 1934 when Chrysler introduced the Airflow, the first car to be built based on the interests of aerodynamics car. Its subsidiary, DeSoto also market the same car with a brand DeSoto Airflow. But once again, both were less successful in the US market.

From the European continent, manufacturers from Czechoslovakia, Tatra, comes with Tatra 77 (T77).This car was born from nicks Zeppelin airship aerodynamics expert, Paul Jaray and Hans Ledwinka. T77 was built in secrecy until its launch in Prague in March 1934. When tested by journalists, T77 can easily reach speeds of 154 kph, with the stability and comfort that is topnotch. This is the first aerodynamic car commercially successful, thanks to its ability to run fast, without the use of a large engine (60 hp).

Aerodynamics-T77And believe it or not, the car that became the inspiration for the VW Beetle is to survive as the most aerodynamic cars in the world, until 1995, when General Motors introduced the EV-1 concept car. Tatra 77 is indeed a big leap in the field of four-wheeled vehicle aerodynamics. Unfortunately, with the outbreak of the Second World War, the development of aerodynamics is hampered because all resources are directed to the war.
In the 1950-1960s eras, the cars begin to be affected by a streamlined shape taken from the cars down in raceways. It later evolved into a science of its own, on how to design a car with precision in order to have a streamlined shape and have high aerodynamic values.

Measuring Instrument

When Audi introduces its Audi 100 sedan, with a value of aerodynamic drag (Cd) .30, which is then successful in the market. Car manufacturers such as resuscitated. Aerodynamics car could be a good selling point because it makes the car more efficient. At that time, not many people know what it means Cd or the coefficient of drag, but gradually began much care, its like hybrid car. The use of appliances or wind tunnel wind tunnel by the vehicle manufacturing had become mandatory if you want to make the car an aerodynamic.

Aerodynamics-simIts use is quite simple. A tunnel with a large fan on the end, which will rotate to create wind. The car that will be tested is placed in the tunnels, and the sensors will record parts which are not friendly to the movement of the wind, when the fan is working. Even manufacturers sometimes only make the car model in a smaller scale than it is to be able to determine aerodynamic car performance.


But now, such costly facilities are increasingly less used due to the sophistication of the computer. Wind tunnel is only used when manufacturing wants to ensure the accuracy of the computer, and then adjust the shape as needed.

F1 Car Not The Most Aerodynamic

Keep in mind that a car with a lot of spoilers or wings does not necessarily make it have the best aerodynamic car values. Formula1 racing car, capable of speeding on the track is not the most aerodynamic car. This car was designed to have down force (power press) is qualified because of high speed.

Aerodynamics-F1Wings, fins, and the diffuser is designed to do just that, while the streamlined shape starting from the snout, the curve of the body, to form a suspension rod, provides wind resistance as low as possible, alias aerodynamics. How do I combine these two things? That duty engineer, who is usually have specialized science of fluid dynamics. And this is very complex and involves thousands of hours of work both in front of the drawing table, in front of the computer, and in the wind tunnel.


As a result, the value of Cd an F1 car on average 70 Compare with the Toyota Prius, which reached .30.That’s because the Prius does not need down force, but it requires a rate as smoothly as possible to save energy. It is derived from the rounded body is smooth without any additional devices such down force rear wing or the other.

Also Read: Drone Nissan GT-R Beat its Supercar Nissan GT-R.


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