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How Bernoulli’s Principle applies to air pressure

By: Mrs. Ermlick. How Bernoulli’s Principle applies to air pressure . “When the speed of a fluid increased its pressure decreases.” Reminder: a fluid is anything that flows; that includes the air we breathe. Bernoulli’s Principle.

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How Bernoulli’s Principle applies to air pressure

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  1. By: Mrs. Ermlick How Bernoulli’s Principle applies to air pressure

  2. “When the speed of a fluid increased its pressure decreases.” Reminder: a fluid is anything that flows; that includes the air we breathe Bernoulli’s Principle

  3. The Wright Brothers knew in 1905 to design their first aircraft with the wings tilted downwards. They knew this because of what they learned from Daniel Bernoulli’s Principle.

  4. The tilt of an aircraft’s wings is designed to push air downward which deflects the air and moves it downward.

  5. The downward force applied to the matter/air is equal to the upward force applied by the matter/air against the aircraft

  6. The only way to stay in the air/aloft is to take some matter/air and accelerate downward

  7. As the aircraft is cutting its way through the air; the air moves faster across the top of the wings then it does below the wings. This creates a low pressure area on the top of the wing.

  8. Under the wing you have a slower moving, buy higher pressure air that tries to rise and fill in the space. With the wing in the way… PRESTO the aircraft goes aloft!

  9. The “Coanda Effect” goes into action. Airflow over the wing gets stuck to the surface, and friction slows the plane down.

  10. For this reason the Wright Brothers designed the wing to be tilted so the air is deflected downwards

  11. Air, which flows below the wing, is pushed downward, but the wing itself pushes down on the air. A lifting force is created.

  12. This also applies to rockets, jet engines, and helicopters.

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