Vortex flowmeter designed with wall pressure measurement

J. J. Miau; T. W. Liu

doi:10.1063/1.1141859

Vortex flowmeter designed with wall pressure measurement

J. J. Miau, T. W. Liu

Department of Aeronautics and Astronautics

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

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 unified relation for area blockage ratios of circular disks up to 29.2% and Reynolds numbers in a range of 2.5×10 ³-9.7×10⁴. 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 flowmeter can be removed from the flow field.

Original language	English
Pages (from-to)	2676-2681
Number of pages	6
Journal	Review of Scientific Instruments
Volume	61
Issue number	10
DOIs	https://doi.org/10.1063/1.1141859
Publication status	Published - 1990

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.1141859

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AB - 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 unified relation for area blockage ratios of circular disks up to 29.2% and Reynolds numbers in a range of 2.5×10 3-9.7×104. 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 flowmeter can be removed from the flow field.

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Vortex flowmeter designed with wall pressure measurement

Abstract

All Science Journal Classification (ASJC) codes

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