Air is flowing through a pipe that has a venturi meter, which is a device that h

Question

Air is flowing through a pipe that has a venturi meter, which is a device that has a reducedcross-sectional area, often used for making flow measurements. The gradual reduction and gradualincrease in diameter surrounding the venturi zone, shown in the figure below, is designed tominimize friction losses (versus an abrupt change in diameter). If we assume that friction can beignored for this problem, what does Bernoulli’s Equation predict for the change in pressure (P inPascals) from Point 1 to Point 2? At which point is the pressure higher?

Explanation / Answer

I don't see any image. But for a Venturi meter, the pressure is lower where the section is lower (where the air speed is increased).

See more theory here:http://hyperphysics.phy-astr.gsu.edu/hbase/pber.html.

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