After a study on aerodynamics and seeing the great importance that has on solid bodies, I decided to build a model of a wind tunnel and study the design and the different positions of an aileron of a car that could influence it.
The construction consists of three parts: the test chamber, the acceleration cone and the diffuser.

 

Inside the test chamber, we could find an anemometer which measures the speed of the wind. Below this chamber there is a balance, which shows the force that the car makes on the ground.

The diffuser contains an embedded air fan with a considerable power in order to make the tests.