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

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Flight and Paper Planes Dr Eric Webster

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

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 airNormal

pressure

Fast air

Lowpressure

Blow

Still airNormal

pressure

Blow

Fast airLow pressure

Still air Normal pressure

Fast airLow pressure

Still air Normal pressure

Blow

Fast airLow pressure

Still air Normal pressure

Spinning Balls

Air speeds up

Air slows down

Spinning Balls

Low pressure

High pressure

Force

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 airLower pressure

Slow airHigher

pressure

Force/Lift

Force/Lift

Gravity

Force/Lift

Gravity

Force/Lift

Gravity

Wing Vortex

Golden Eagle

A320 Wing Tips

Internet pages

www.best.com/~jpalmer/airplane

www.geocities.com/enchanted forest or search for Corneles A Huisman

www.myweb3000.com/freeplane.html

www.mcshane.org