Construction of venturi meter

Updated: 9/19/2023
User Avatar

Wiki User

11y ago

Best Answer

The following are the main parts and areas of venture meter:

  1. The entry of the venture is cylindrical in shape to match the size of the pipe through which fluid flows. This enables the venture to be fitted to the pipe.
  2. After the entry, there is a converging conical section with an included angle of 19' to 23'.
  3. Following the converging section, there is a cylindrical section with minimum area called as the throat.
  4. After the throat, there is a diverging conical section with an included angle of 5' to 15'.
  5. Openings are provided at the entry and throat (at sections 1 and 2 in the diagram) of the venture meter for attaching a differential pressure sensor (u-tube manometer, differential pressure gauge, etc) as shown in diagram.
User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Construction of venturi meter
Write your answer...
Still have questions?
magnify glass
Related questions

Fluid mechanics in venturi meter?

Venturi Meter is a device used for measuring the flow of the fluid.

How accurate is a venturi meter?


Why is coefficient of discharge of venturi meter is more than coefficient of discharge of orifice meter?

In Venturi meter losses are less so coefficient of discharge is higher whereas in orifice meter due to no convergent and divergent cones there are more losses and hence its coefficient of discharge is less.In venturi meter losses are low due to steamline shape of the diffuser and the pressure gradient is not abrupt as in case of orifice meter.

What is flow in venturimeter?

Flow in a venturi meter refers to the rate at which a fluid passes through the device. The flow of fluid is measured by the pressure difference created between the converging and diverging sections of the venturi meter. This pressure difference is directly related to the flow rate of the fluid passing through the venturi meter.

Tell me the main uses of venturi meter?

The discharge coefficient is near unity and Non-recoverable net head loss is very small.

What is the order of efficiency of venturi meter orifice meter and rotoameter?

The orifice plate can easily be changed to accomodate widely different flow rates, whereas the throat diameter of a venturi is fixed, so that its range of flow rates is circumscribed by the practical limits of Dp.The orifice meter has a large permanent loss of pressure because of the presence of eddies on the downstream side of the orifice-plate; the shape of the venturi meter prevents the formation OS these eddies and greatly reduces the permanent loss.The orifice is cheap and easy to install. The venturi meter is expensive, as it must be carefully proportioned and fabricated. A home made orifice is often entirely satisfactory, whereas a venturi meter is practically always purchased from an instrument dealer.On the other hand, the head lost in the orifice for the same conditions as in the venturi is many times greater. The power lost is proportionally greater, and, when an orifice is inserted in a line carrying fluid continuously over long periods of time, the cost of the power may be out of all proportion to the saving in first cost. Orifices are therefore best used for testing purposes or other cases where the power lost is not a factor, as in steam lines.However, in spite of considerations of power loss, orifices are widely used, partly because of their greater flexibility, because installing a new orifice plate with a different opening is a simpler matter. The venturi meter can not be so altered. Venturi meters are used only for permanent installations.It should be noted that for a given pipe diameter and a given diameter of orifice opening or venturi throat, the reading of the venturi meter for a given velocity is to the reading of the orifice as (0.61/0.98)2, or 1:2.58.(i.e. orifice meter will show higher manometer reading for a given velocity than venturi meter).

Why is the length of the diverging section in a venturi meter longer than the converging?

The length of the diverging section in a venturi meter is longer than the converging section to allow the flow to gradually return to its original pressure and velocity. This helps minimize energy losses and turbulence, ensuring accurate flow measurement. The design aims to maintain steady flow conditions for optimal performance of the venturi meter.

What is Venturi as defined with pictures?

What is a Venturi?

What is the principle on venturimer works?

A Venturi meter works based on the principle of Bernoulli's equation, which states that an increase in fluid velocity results in a decrease in pressure. The Venturi meter is a device that measures the flow rate of a fluid by creating a pressure difference between two points in a pipe, allowing for flow rate calculations based on this pressure difference.

What is the birth name of Rick Venturi?

Rick Venturi's birth name is Rick J. Venturi.

What is the birth name of Ken Venturi?

Ken Venturi's birth name is Kenneth Paul Venturi.

What is the difference between convergent divergent nozzle and venturi tube?

In case of venturi meter, at the diverging section mach number is less than 1. however in diverging section of a nozzle mach number is greater than 1.