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Air flowing quickly over the open top of a vertical tube lowers the air pressure in it. This causes liquid in the tube to rise. (It rises due to the higher pressure acting on the other end. The tube is marked to indicate the wind speed.
Alternatively, if the open vertical tube is in still air and it is connected at its lower end with a horizontal tube containing a flowing liquid, the liquid in the vertical tube will fall when the horizontal flow past the lower end increases.
What else can I help you with?
What is the most common issue encountered when using a venturi meter in a fluid flow system?
The most common issue encountered when using a venturi meter in a fluid flow system is blockage or clogging, which can affect the accuracy of the flow measurement.
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 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 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.
What is the principle of a vibration meter?
A vibration meter measures the amplitude and frequency of vibrations in machinery or structures to assess their condition and detect any potential issues. It quantifies the level of vibration to determine if it is within acceptable limits to prevent damage or malfunctions. The principle behind a vibration meter is to provide a quantitative measurement of vibrations to aid in maintenance and troubleshooting efforts.
What is the most common issue encountered when using a venturi meter in a fluid flow system?
The most common issue encountered when using a venturi meter in a fluid flow system is blockage or clogging, which can affect the accuracy of the flow measurement.
Fluid mechanics in venturi meter?
Venturi Meter is a device used for measuring the flow of the fluid.
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 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.
How accurate is a venturi meter?
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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.
Will there be any flow variations if a venturimeter inlet outlet connections is reversed?
Yes, reversing the inlet and outlet connections of a venturi meter will result in flow measurement errors. The design of the venturi meter relies on the inlet and outlet connections being in a specific orientation to accurately measure fluid flow rates. Reversing the connections disrupts the flow dynamics and can lead to inaccurate readings.
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).
What is venturi meter?
A Venturi meter is a device used to measure the flow rate of fluids in a pipeline. It consists of a converging section followed by a throat and then a diverging section. The pressure difference between the converging and throat sections is used to determine the flow rate of the fluid passing through the device.
What is the principle on which LCR meter works?
It uses Impedance technique. Check Out some LCR meter data sheets such as Agilent user manual it has a break down on the measurement principles or search for books on instrumentation and measurement which explain the actual circuit diagram.
