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sureshkumargce • Jul 22, 2011

# Difference between Venturi meter and Nozzle

Dear friends

What's the difference between venturi meter and Nozzle? Both are have convergent,Divergent and throat portions.Shall we use venturi meter as a Nozzle?Kindly clarify.😕
no we cant use venturi meter as an nozzel because ...................venturi meter is used to measure the flow rate ....but nozzel is used to increase the flow velocity at the outlet
ISHAN TOPRE • Jul 24, 2011
Hi Suresh, a nozzle is a nozzle. We use a jet of fluid and direct nozzle to rotate turbine blades.

A venturimeter is a flow rate measuring device. We apply Bernoulli's equation there. 😀
ShrinkDWorld • Jul 25, 2011
ishutopre
Hi Suresh, a nozzle is a nozzle. We use a jet of fluid and direct nozzle to rotate turbine blades.

A venturimeter is a flow rate measuring device. We apply Bernoulli's equation there. 😀
So in your view we can not apply Bernoulli's equation in nozzle.!
ISHAN TOPRE • Jul 25, 2011
I never said that. Well in laboratory practicals I haven't applied it. Bernoulli's equation is used for various applications mostly in SFEE equations.
I have seen nozzles to be used only in turbines. Sorry for any wrong information I might have conveyed.
ishutopre
I never said that. Well in laboratory practicals I haven't applied it. Bernoulli's equation is used for various applications mostly in SFEE equations.
I have seen nozzles to be used only in turbines. Sorry for any wrong information I might have conveyed.
Nothing wrong in the info conveyed.
Bernoulli's theorem can be applied to any fluid flow continuum. Though its practical applications are mostly in flow measurements such as those using venturi meters. Nozzles are used mainly as hardware used to modify delivery of fluids open air or large tanks. They may be designed to deliver a straight jet, a diverging jet, hollow cone, fish tail or other shapes. Bernoulli's theorem may even be used during the design stage for nozzles. Turbine nozzles do require special design to ensure maximum efficiency.

Venturi meter is a flow measuring device used to measure the flow rate of fluids. In Venturi meter the machine number is less, mostly less than 1. Where as in CD nozzles are used in turbines and rockets. In order to drive these More velocity is required. So, the mach number varies from Sonic to super sonic. So, the nozzles are completely used to achieve the high velocities. If we consider the operating temperature both are different and material used also changes.

Hope you understood...

Ramesh RR • Mar 14, 2019

Venturi Meters are Measurement Devices. Their primary objective is to measure flow volumes by measuring Pressure Differences in a specially defined profile.

Nozzles are devices designed for the most efficient conversion of fluid Pressures to fluid Flow.

The two are not interchangeable.