[Virginia Tech Department of Physics]

Lecture Demonstrations

Fluids
   

F53: Venturi Meter Demonstration

 

Purpose: A Convenient Kit for Illustrating Bernoulli's Law

Description:

 

The Venturi tube, which consists of a plain tube with a smooth constriction in its bore at the middle, is one of the most widespread applications of Bernoulli's Law. It is found in carburetors, fluid flow meters, and aircraft airspeed indicators, to name a few uses. This demonstration version is made of glass and has three side tubes for attaching an included three-leg manometer filled with colored water to show the relative pressures at significant points of the tube when gas is flowing through it. A sufficient flow of gas to produce clear differences of water level in the three manometer legs can be generated by blowing through the tube. The tube is 22cm long, 2.0cm in diameter at the wide ends, and narrows to 10cm in diameter in the middle. There is tubulation at each end for attaching 6.4mm diameter rubber tubes.

Equipment List: Storage Location: CHEMP 130A

 

Venturi Tube H1

References:

Manual: Online   Setup Notes: F53 PIRA #:
Manufacturer(s): Sargent-Welch # CP31043-00 Other school's Demonstration web pages

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