Venturi tube

From Glossary of Meteorology



Venturi tube

A tube designed to measure the rate of flow of fluids.

It consists of a tube having a constriction or throat at its midsection. The difference between the pressure measured at the inlet and at the throat is a function of the fluid velocity. The instrument is frequently used in wind-tunnel work and as a speed indicator for aircraft.
Compare Pitot tube.


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