Question

Is Bernoulli’s principle correct?

Answer 1

Bernoulli’s principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in static pressure or an increase in the fluid’s potential energy. Bernoulli’s principle applies to all types of fluids including gases. We need to prove whether it is correct or not.

Complete step by step solution:
Bernoulli’s theory defines the mechanics of fluids. It states that the pressure reduces as the fluid’s speed increases. When fluids accelerate, it moves from a region of higher pressure to a region of lower pressure.
Bernoulli’s theorem describes the lift for an aeroplane wing. A fluid flowing past a surface of an object applies a force against it. Lift is the component of this force that is perpendicular to the flow direction. Lift is always accompanied by a drag force, which is the component of the surface force parallel to the flow direction. The streamlined shape of an aeroplane wing known as airfoil generates lift by exerting a downward force on the air as it flows around it. Bernoulli’s theorem states that the air flowing over the top of the wing travels faster than the air flowing over the bottom surface of the wing, which is horizontal due to this curvature. And thus Bernoulli’s theorem is accompanied by real-life applications.
Bernoulli’s theorem is often put in speculations about how the speed of a fluid is related to its pressure. But it is correct for fluids within a horizontal flow where the fluid speeds up in lower pressure points.

Note: Note that according to Bernoulli’s principle any change in velocity of fluids needs to be balanced by the change in pressure or force. The concept involved is difficult to understand. The change in pressure of the fluid will also result in a change in the speed of the fluid.