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Understanding Flight through Bernoulli’s Theorem: The Science of Paper Planes

Explore Dr. Eric Webster's insights on Bernoulli’s Theorem and its application in flight mechanics. Learn how fast-moving air creates low pressure, allowing objects like planes and paper airplanes to achieve lift. Discover the principles behind normal air pressure, the forces acting on spinning balls, and the dynamics of golf ball flight. This discussion draws connections between airflows, gravity, and lift forces, providing a comprehensive look at why aircraft fly and the factors influencing their movement.

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Understanding Flight through Bernoulli’s Theorem: The Science of Paper Planes

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Presentation Transcript

  1. Flight and Paper Planes • Dr Eric Webster

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

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

  4. Normal air pressure Normal air pressure Normal air pressure

  5. Blow Fast air Low pressure Still air Normal pressure Still air Normal pressure

  6. Fast air Low pressure Blow Still air Normal pressure

  7. Fast air Low pressure Still air Normal pressure

  8. Fast air Low pressure Blow Still air Normal pressure

  9. Spinning Balls Air speeds up Air slows down

  10. Spinning Balls Low pressure High pressure

  11. Force

  12. Force

  13. Golf Balls - Slice

  14. Golf Balls - Correction

  15. 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

  16. Fast air Lower pressure Slow air Higher pressure

  17. Force/Lift

  18. Force/Lift Gravity

  19. Force/Lift Gravity

  20. Force/Lift Gravity

  21. Wing Vortex

  22. Golden Eagle

  23. A320 Wing Tips

  24. 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

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