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Experiments in Fluids

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01-01-2013 | Research Article

Pressure probe with five embedded flush-mounted sensors: unsteady pressure and velocity measurements in hydraulic turbine model

Authors: Pierre Duquesne, Gabriel Dan Ciocan, Vincent Aeschlimann, Antoine Bombenger, Claire Deschênes

Published in: Experiments in Fluids | Issue 1/2013

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Abstract

The unsteady five-hole Pitot tube, with embedded flush-mounted sensors, provides one of the most advanced experimental techniques in fluid mechanics stemming from Pitot tube. This instrument enables the measurement of both unsteady pressures and instantaneous three-dimensional velocity vectors. The present paper focuses on the methodology and use of this type of probe in hydraulic turbines. Different fluctuating phenomena can be monitored, providing reliable estimates regarding amplitude and frequency. The probe is particularly advantageous for applications when the flow exhibits large angular fluctuation. In such cases, even the mean values must be validated using unsteady measurements. The calibration method and the validation of the unsteady measurements are presented through three different hydraulic turbine models.

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Title: Pressure probe with five embedded flush-mounted sensors: unsteady pressure and velocity measurements in hydraulic turbine model
Authors: Pierre Duquesne
Gabriel Dan Ciocan
Vincent Aeschlimann
Antoine Bombenger
Claire Deschênes
Publication date: 01-01-2013
Publisher: Springer-Verlag
Published in: Experiments in Fluids / Issue 1/2013
Print ISSN: 0723-4864
Electronic ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-012-1425-y

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