Bernoulli Principle - The faster fluids flow the less pressure they exert. The slower fluids flow the more pressure they exert
Aerofoil - A streamlined structure with at least one curved surface
Symmetrical - Discus and Javelin
Asymmetrical - Ski Jump and F1 Car
Angle of Attack - The angle at which a projectile is tilted or presented to the air.
Optimum Angle of Attack - 17 Degrees
Symmetrical (Aerofoil)
Above the curved upper surface a low pressure zone is created (Air travels further and faster)
As velocity increases pressure decreases
Fluids move from an area of high to low pressure which create the additional lift force
Below the flat underneath surface a high pressure zone is created (Air travels less far and slower)
Asymmetrical (Reverse Aerofoil)
An aerofoil positioned with its curved upper surface facing downwards and its flatter surface facing upwards causes downforce.
As velocity increases pressure decreases
Below the curved upper surface a low pressure zone is created (Air travels further and faster)
Above the flat underneath surface a high pressure zone is created (Air travels less far and slower)
Fluids move from an area of high to low pressure which create the downforce
Downforce - A force pushing downwards on a body
Bernoulli Diagrams
Resultant Force Diagram
Free Body Diagram
Air Flow Diagram
Flight Path Diagram