Disk-type vortex flowmeter and method for measuring flow rate us

Details Disk-type vortex flowmeter and method for measuring flow rate us Disk-type vortex flowmeter and method for measuring flow rate us

1991-09-12

1992-12-15

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

G01F 132

Patent

active

051706717

ABSTRACT:
An axisymmetric bluff body is proposed for a vortex flowmeter as the vortex shedder. It is found that vortex shedding frequencies measured can be nondimensionalized into a linear relation with the Reynolds number for area blockage ratios of circular disks up to 29.2%. Vortex shedding frequency can be clearly sensed by a pressure transducer installed on the pipe wall in the neighborhood of the maximum pressure fluctuation being measured. This suggests a feasible design that the sensor of a vortex flowmeter can be removed from the flow field or changed easily.

REFERENCES:
patent: 4638672 (1987-01-01), McCall

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