Bernoulli Blower

Muhammad Ahad Butt, FDSK Intern of 2014

Seems Like Magic?

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.

But It’s Just Science!

The Fast Moving Air Creates a low

pressure region .This is

called the Bernoulli Effect

Moving stream of air resulting in less pressureArea of high

pressure, ball pushed inward toward area oflowpressure

Air Source

History and OriginDaniel 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 Bernoulli´s principle. His theory goes a long way to explaining why airplanes can fly.

Reference1. http://www.concepts-plus.de/exhibits/pictures/bb_02

.jpg

2. http://www.exploratorium.edu/books/bernoulli/explo.gif

3. http://www.exploratorium.edu/books/bernoulli/fullerton.gif

4. https://www.cdm.org/qr/101/Bernouilli-Sketch.gif

5. http://www.concepts-plus.de/exhibits/pictures/bb_02.jpg

GlossaryBernoulli 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.