Question

What is Bernoulli's effect?

Answer 1

n fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.(Ch.3)(§ 3.5) The principle is named after Daniel Bernoulli who published it in his book Hydrodynamica in 1738. Although Bernoulli deduced that pressure decreases when the flow speed increases, it was Leonhard Euler who derived Bernoulli's equation in its usual form in 1752. The principle is only applicable for isentropic flows: when the effects of irreversible processes (like turbulence) and non-adiabatic processes (e.g. heat radiation) are small and can be neglected.

Answer 2

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Bernoulli's theorem:

The Bernoulli's theorem states that for an ideal fluid, under steady state condition, the sum of kinetic energy per unit volume, potential energy per unit volume (or sum of mechanical energy per unit volume) and pressure per unit volume is constant.

Equation of Bernoulli's theorem:

$\huge{{{\boxed{\boxed{\bold{\frac{\rho v^2}{2}+\rho gh + P = Constant}}}}$

$\\\textbf{where,}\\\bold{\rho} =\textbf{Density of fluid}\\P = \textbf{Pressure}\\v = \textbf{Velocity of fluid in section.}\\g =\textbf{Acceleration due to gravity}\\h = \textbf{Height in the direction of gravity}$

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