Influence of Reynolds number on vortex flowmeter

The influence of the Reynolds number on the vortex flowmeter is within a certain range of the Reynolds number. The relationship between the output frequency signal of the vortex flowmeter and the volume flow rate flowing through the measuring tube is not affected by the physical properties (density, viscosity) and composition of the fluid. Influence, that is, the flow coefficient is only related to the shape and size of the vortex generator and the pipe. Therefore, it is only necessary to calibrate the flow coefficient in a typical medium and apply to various media. This is a great advantage of the vortex flowmeter. Correction for Reynolds number effect Table 8.2 gives the correction factor table for the low Reynolds number measurement section of the 100 series vortex flowmeter. There are also online and offline calculations for using this form. Among them, online computing methods are mostly in the belt. It is used in vortex flow transmitters (sensors), and offline calculations are often used when corrections are made by the broken line method in the flow display table.

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