Purpose Of A Roof Spoiler

It gives the very rear of a car a turned up appearance.

Purpose of a roof spoiler.

But that small disruption can have a major impact on overall aerodynamics. However it is mostly now done for looks as it is an optional accessory same as the front bumper lip etc. The most common function of the spoiler is to reduce the effect of the turbulence created by the airflow. Which effect it is going to spoil.

It does so by spoiling the streamlined flow of air and providing a cushion like a boundary layer. It is custom designed to fit the upper window section and installs directly above the glass. As its name indicates a spoiler spoils the smooth flow of air over the back of a vehicle. Most common spoiler functions include disrupting some type of airflow passing over and around a moving vehicle.

A common spoiler diffuses air by increasing amounts of turbulence flowing over the shape spoiling the laminar flow and providing a cushion for the laminar boundary layer. Well it does help with wind deflection a bit which i heard creates less drag and less stress on the motor. They are usually manufactured from polyurethane carbon fiber blow molded abs plastic or hand laid fiberglass materials. Then in return adds an extra 20hp or so to the wheels.

6 nov 24 2010 the initial purpose of a spoiler is to break up the airflow from the back of the car to reduce drag. Most of the roof spoilers are custom molded and need no modifications to mount.