What is Bernoulli’s effect?

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What is Bernoulli’s effect?

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Bernoulli’s effect

According to Bernoulli’s effect in any small volume of space through which a fluid is flowing steadily the total energy comprising the pressure gravitational potential and kinetic energy is always constant. In fact this theory propounds the law of conservation of energy for flowing fluids. It also states if the velocity of a horizontally flowing liquid or gas increases its pressure decreases. This effect has many applications in mechanics. Bernoulli’s effect has a great deal in the development of aerodynamics and applied in the design of Airfoil. An aeroplane wing seen from the tip is flat at the bottom and curved at the top.

Bernoulli's effect

As the wing travel either over the under the wing. Air moving over the wing travel faster. Because the air moving over the wing is travelling faster there is less air pressure on the top of the wing. This means that there is more pressure on the bootom of the wing, which pushes the wing upward causing the aeroplane to stay up in the air. On the basis of this fact an instrument named Venturimeter was developed by an Italian JB. Venturi(1746-1822) to measure the velocity of fluids. The carburettors of cars and buses also operate on the basis of Bernoulli’s effect. Spinning of the cricket ball is also an exa. of Bernoulli’s effect.

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