Question

The vortex shedding meter is primarily used for measuring

• A. Fluid Flow Rate
• B. Liquid Level
• C. Fluid Temperature
• D. Fluid Pressure

Hint:

When setting up a vortex shedding meter, ensure that the fluid's Reynolds number is within the operational range of the meter to guarantee accurate readings.

Answer 1

The Correct Option is A

A vortex shedding meter is a device used in fluid dynamics to measure the flow rate of liquids and gases. It operates based on the principle of vortex shedding where vortices are formed when a fluid flows past a bluff body. The frequency of these shed vortices is proportional to the velocity of the fluid flow, thereby allowing for the measurement of the flow rate. 
Step 1: Understanding Vortex Shedding: 
As fluid flows past the bluff body in the meter, it alternates in shedding vortices from either side of the body, which creates a Von Karman Vortex Street. 
Step 2: Measuring Flow Rate: 
The frequency of these vortex streets is measured, and because this frequency is directly proportional to the fluid velocity, it can be used to calculate the flow rate.