Question

Why is Bernoulli's Principle wrong ?

Answer 1

The venturi tube is a practical use of Bernoulli's Principle. The air entrance narrows to a throat (constricted point) in the venturi tube, and the output section grows in diameter toward the back. The outlet's diameter is the same as that of the inlet. The mass of air entering and exiting the tube must be exactly equal. The speed must rise at the constriction to allow the same volume of air to travel in the same period as in the rest of the tube. When the air moves faster, the pressure drops. The airflow slows and, the pressure rises after the constriction.

Complete step-by-step solution:
The principle of Bernoulli is correct. When there is a horizontal flow of fluid, sites with a higher speed of fluid will have lower pressure than places with a lower speed of the fluid, according to the concept. Bernoulli's principle and Newton's law were used to describe the aircraft's ascent.
Bernoulli's theory of fluid mechanics is a concept in fluid mechanics. It states that when the fluid's speed increases, pressure decreases. Fluid travels from higher pressure to a lower pressure (accelerates). As a result, each change in a fluid's velocity must be counterbalanced by a change in pressure (force).
Bernoulli's theorem aids in the description of lift due to the bent upper surface of an airfoil, the scientific term for an airplane wing. According to the hypothesis, air flowing over the top of the wing travels quicker than air flowing over the bottom surface, which is horizontal due to the curvature.
The Bernoulli theory applies to any fluid (liquid or gas), but it is especially relevant for fluids traveling at high speeds. The concept is built based on venturi scrubbers, thermo compressors, aspirators, and other devices that move fluids at high speeds.

Note:
Bernoulli's principle is utilized in the theory of ocean surface waves and acoustics to examine the unstable potential flow. It is also used to approximate fluid characteristics such as pressure and speed.
Bernoulli's principle is also used in the following ways:
A venturi meter is a device that measures the rate of flow of liquid via pipes and is based on Bernoulli's theorem.
$V = {a_1}{a_2}\sqrt {\dfrac{{2hg}}{{a_1^2 - a_2^2}}}$
An airplane's wings are shaped in such a way that air travels over the upper surface at a faster rate than the lower surface. Bernoulli's principle is used to compute the difference in airspeed, which results in a pressure differential.
We tend to fall towards the train while we are standing at a railway station and a train arrives. This is explained by Bernoulli's principle, which states that as the train passes us, the velocity of the air between us and the train increases. As a result of the equation, the pressure lowers, and the pressure from behind pushes us towards the train. Bernoulli's influence is the basis for this.