Burnelli's principle by Muhammad Ahad Butt

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Bernoulli Blower

• Muhammad Ahad Butt, FDSK Intern of 2014

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Seems Like Magic?
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But Its Just Science!
This has been one of the most popular exhibits in
the history of science centers, and it shows how
the interaction of the low pressure zones on all
sides of the ball cause it to remain trapped in
the airstream.
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The Fast Moving Air Creates a low pressure region
.This is called the Bernoulli Effect
Moving stream of air resulting in less pressure
Area of high pressure, ball pushed inward toward
area of lowpressure
Air Source
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History and Origin

• Daniel Bernoulli, an 18th century Dutch born
  mathematician, discovered that fluids accelerated
  creating a low pressure zone when forced past an
  obstruction. He formulated this in his work
  Hydrodynamica which considered the basic
  properties of fluid flow, pressure, density and
  velocity, and gave their fundamental
  relationship. It is now known as Bernoullis
  principle. His theory goes a long way to
  explaining why airplanes can fly.

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Reference

• http//www.concepts-plus.de/exhibits/pictures/bb_0
  2.jpg
• http//www.exploratorium.edu/books/bernoulli/explo
  .gif
• http//www.exploratorium.edu/books/bernoulli/fulle
  rton.gif
• https//www.cdm.org/qr/101/Bernouilli-Sketch.gif
• http//www.concepts-plus.de/exhibits/pictures/bb_0
  2.jpg

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Glossary

• Bernoulli Effect  the decrease in pressure as
  the velocity of a fluid increases. The phenomenon
  of falling pressure in a fluid as the velocity of
  the fluid stream increases. The Bernoulli
  effect accounts for the lift generated by the
  airfoil shape of an airplane wing.
• High Pressure a condition of the atmosphere in
  which the pressure is above average (e.g. in an
  anticyclone).
• Low Pressure a condition of the atmosphere in
  which the pressure is below average (e.g. in a
  depression).
• Pressure continuous physical force exerted on or
  against an object by something in contact with
  it.