Because, the scientist name VENTURI had discover that device as flow measurment. So that it call as venturimeter.
What is the working principle of venturimeter?
Venturimeter
Measurement of flow rate in a pipe
to measure the flow in any pipes
The coefficient of discharge (Cd) for a venturimeter typically ranges from 0.95 to 0.99. This high value indicates that venturimeters are efficient flow measurement devices, with minimal energy losses during fluid flow. The exact value can vary based on factors such as fluid properties, flow conditions, and the design of the venturimeter.
Venturimeter is the short pipe having two conical parts and portion of uniform cross section between these two parts.
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The coefficient of contraction (Cc) for a venturimeter is the ratio of the area of the throat (narrowest section) to the area of the inlet (largest section). It accounts for the loss of fluid flow due to the contraction as the fluid passes through the throat, typically ranging from 0.6 to 0.9 for most venturimeters. This coefficient is crucial for accurate flow rate calculations and reflects the efficiency of the venturimeter design in maintaining fluid velocity.
The conclusion of a venturimeter experiment typically demonstrates the relationship between fluid velocity and pressure difference in a flowing fluid. According to Bernoulli's principle, as the fluid passes through the narrower section of the venturimeter, its velocity increases while the pressure decreases. This pressure difference can be used to quantify flow rate, confirming the device's effectiveness for measuring fluid flow in various applications. Overall, the experiment validates the principles of fluid dynamics and flow measurement.
why lenght of divergent cone is larger than convergent cone in venturi meter
The ratio inlet to throat diameter vary from 1/3 to 3/4,but the most suitable is from 1/2 to 1/3