What is a Venturimeter? Name two applications.

Hint: When a fluid runs through a restricted part (or choke) of a pipe, the Venturi effect occurs, resulting in a decrease in fluid pressure. The Venturi effect is named after Giovanni Battista Venturi, who discovered it. In the case of very viscous liquids, venturi tubes are frequently employed in operations where permanent pressure loss is not tolerated and maximum precision is required.

Complete answer:
The Bernoulli's Equation is used to operate a venturimeter, which is a form of flowmeter. This device is commonly used to monitor the flow rates of fluids inside a pipe in the water, chemical, pharmaceutical, and oil & gas sectors. To estimate the rate of fluid flow, the pipe cross-sectional area is decreased to generate a pressure differential, which is measured with a manometer.

As a result, the venturi metre is a differential head flow meter that transforms pressure energy to kinetic energy. Giovanni Batista Venturi demonstrated the principle of the Venturimeter (Hence the name Venturimeter). A venturi metre, also known as a venturi flowmeter, is a device that measures the flow of air through a tube. It's used to figure out how fast fluids are moving through a pipeline.

It's possible that the fluid is a liquid or a gas. The metre is made up of a pipe with a shrinking throat that widens on the opposite side of the choke point before expanding again to its original diameter. The pressure head is measured before and after the narrower throat by the venturi metre, which determines velocity.

Venturi Meters are widely used in the fluid industries. The most common uses for venturi meters are as follows:
-Used to monitor airflow in engine carburetors (automotive industry).
-Measures and controls process flow in process industries (Process and Power Piping Industries).
-Venturi Meters are used to monitor blood flow in the arteries in the medical field.
-Measures the flow of fluid via pipes (Oil & Gas Industries)

Note: Venturi metres are utilised in pipes in wastewater treatment facilities and collection systems. They're utilised in wastewater pipes since their general design allows particles to flow through rather than accumulate in front of them. With less accumulation in the pipes, more precise assessments of the wastewater's pressure and hence velocity are possible.