Development of a pressure based vortex-shedding meter: measuring unsteady mass-flow in variable density gases

An entirely pressure-based vortex-shedding meter has been designed for use in practical time-dependent flows. The meter is capable of measuring mass-flow rate in variable density gases in spite of the fact that fluid temperature is not directly measured. Unlike other vortex meters, a pressure based...

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Bibliographic Details
Published in:Measurement science & technology 2016-08, Vol.27 (8), p.85901
Main Authors: Ford, C L, Winroth, M, Alfredsson, P H
Format: Article
Language:English
Subjects:
mass-flow
measurement
pulsating
unsteady
vortex-meter
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Summary:An entirely pressure-based vortex-shedding meter has been designed for use in practical time-dependent flows. The meter is capable of measuring mass-flow rate in variable density gases in spite of the fact that fluid temperature is not directly measured. Unlike other vortex meters, a pressure based meter is incredibly robust and may be used in industrial type flows; an environment wholly unsuitable for hot-wires for example. The meter has been tested in a number of static and dynamic flow cases, across a range of mass-flow rates and pressures. The accuracy of the meter is typically better than about 3% in a static flow and resolves the fluctuating mass-flow with an accuracy that is better than or equivalent to a hot-wire method.
ISSN:0957-0233
1361-6501
1361-6501
DOI:10.1088/0957-0233/27/8/085901