A spoiler is an automotive aerodynamic device whose intended design function is to 'spoil' unfavorable air movement across a body of a vehicle in motion, usually described as turbulence or drag

1. spoiler
Submitted by : Adithyan pv

2. What the use of

3. INTRODUCTION
Spoil
erA spoiler is an automotive aerodynamic device whose intended
design function is to 'spoil' unfavorable air movement across a body
of a vehicle in motion, usually described as turbulence or drag
Spoilers on the front of a vehicle are often called air dams
Spoilers are often fitted to race and high-performance
sports cars

4. Forces acting on vehicle
Drag And Lift
When air flows through an aero foil structure due to the
variations of velocity at the top and bottom part which give
rise to a pressure variation that is the pressure at lower part
will be high which lifts the body

5. When the vehicle travel at high speed the vehicle experiences air
resistance
Some of the air flow stream lines travels above the car body some
of the travel below the car body

6. Air passing through the top of the car have more velocity
compared to the bottom part hence the pressure at the
top will be less compared to the bottom part due to the
pressure rise at lower portion the body tend to have an
upward lift

7. Front And Rear Spoilers
One of the most conventional method to avoid or delay
separation is creating disturbances in flow in the laminar zone,
thus making it turbulent. Turbulent flow by its very nature has
more internal energy to remain attached to the body.
The function of front spoiler is to convert laminar flow into
turbulent flow
Front spoilers

8. Rear Spoiler
Rear Spoilers are slightly different in operation in
simplest terms its like an inverted wing
At high speeds the car body generates significant amount
of lift which reduces its traction and thus its
maneuverability and stability. This could be only
compensated by increasing the weight of the car and
thus taking a penalty of performance. This is were the
rear spoilers help in design. They provide the extra
downward force to compensate for the lift generated by
the car

9. Air flow over the
spoiler

10. Aero foil structure
Inverted aero foil structure

11. functions
Avoid lift
Better traction control
Reduce weight of vehicle
Increase Braking Stability
aesthetic