Flight and Paper Planes Dr Eric Webster. Bernoulli ’ s Theorem When air flows fast the pressure of the air is lowered.

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Presentation transcript:

Flight and Paper Planes Dr Eric Webster

Bernoulli ’ s Theorem When air flows fast the pressure of the air is lowered

Bernoulli ’ s Theorem When air flows fast objects move towards the fast flowing air

Normal air pressure Normal air pressure Normal air pressure

Still air Normal pressure Fast air Low pressure Blow Still air Normal pressure

Blow Fast air Low pressure Still air Normal pressure

Fast air Low pressure Still air Normal pressure

Blow Fast air Low pressure Still air Normal pressure

Spinning Balls Air speeds up Air slows down

Spinning Balls Low pressure High pressure

Force

Golf Balls - Slice

Golf Balls - Correction

Why do aircraft fly? A look at a few web sites would suggest that the answer lies in an application of the Bernoulli ’ s Theorem

Fast air Lower pressure Slow air Higher pressure

Force/Lift

Gravity

Force/Lift Gravity

Force/Lift Gravity

Wing Vortex

Golden Eagle

A320 Wing Tips

Internet pages forest or search for Corneles A Huisman

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