Question

explain why length of diverging cone is greater than converging cone in Venturi meter?​

Answer 1

Answer:

Since flow separation is not experienced while converging, the converging section is shorter. Maximum value of cone angle of converging section is as such to avoid vena contracta such that flow area is minimum at throat. ... Because it reduce the backward motion of flow.

Answer 2

The angle of the diverging portion is between 5 and 15. Due to the diverging cone's longer length than the converging cone, the diverging angle is smaller than the converging angle.

Describe the Venturi meter.

• A Venturi meter is a tool used to gauge the amount of fluid flowing through a pipe at a given time.
• Bernoulli's equation is used in the Venturi meter.

• Its fundamental tenet, that pressure falls as velocity rises, likewise rests on the Bernoulli equation.
• The venture meter theory was first conceived by G.B. Venturi in 1797, but it wasn't until C. Herschel's work in 1887 that it was taken seriously.
• The idea is that as the flow's cross-sectional area is reduced, a pressure differential between the various flow zones is formed, which aids in monitoring the pressure difference.
• This pressure differential makes it simple to quantify the discharge in flow.

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