In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in static pressure or a decrease in the fluid's potential energy. This requires that the sum of kinetic energy, potential energy and internal energy remains constant.
Venturi meters are flow measurement instruments which use a converging section of pipe to give an increase in the flow velocity and a corresponding pressure drop from which the flowrate can be deduced. They have been in common use for many years, especially in the water supply industry.
Viscosity is a measure of a fluid's resistance to flow.
It describes the internal friction of a moving fluid. A fluidwith large viscosity resists motion because its molecular makeup gives it a lot of internal friction.Multiply the cross-sectional area of the hole by the fluid velocity to find the volume flow rate of the fluid (Q): Q = A * v This will be the volume of the fluid that leaves the hole in cubic meters per second.
Class 11 Physics Mechanical Properties of Fluids. Venturimeter. Venturimeter. Venturimeter is a device to measure the flow of incompressible liquid. It consists of a tube with a broad diameter having a larger cross-sectional area but there is a small constriction in the middle.
Bernoulli's principle relates the pressure of a fluid to its elevation and its speed. Bernoulli's equation can be used to approximate these parameters in water, air or any fluid that has very low viscosity.
Evangelista Torricelli invented the mercurial barometer
Barometer - Pronunciation: [b u rom´ u t u r] - a barometer is an instrument for measuring atmospheric pressure. Evangelista Torricelli invented the first barometer, known as the "Torricelli's tube".Dynamic lift is the force that acts on a body by virtue of its motion through a fluid. For example, during the game of cricket, tennis, baseball or golf, we have noticed that a spinning ball deviates from its parabolic trajectory during its motion in the air.
Definition of Torricelli's law. : a law in hydrodynamics: the speed of efflux of a liquid from an orifice is equal to that of a body falling freely through a distance equal to the total head of the liquid at the orifice.
Torricelli's theorem also comes in equation form: v = √(2gh), where v is the velocity of the fluid, g is the acceleration due to gravity, and h is the height of the fluid above the hole. Using this equation, we can solve for either the height or the velocity of the fluid, as long as the other is known.
In fluid dynamics, the continuity equation states that the rate at which mass enters a system is equal to the rate at which mass leaves the system plus the accumulation of mass within the system.
