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Article

Wall-Proximity Effects on Five-Hole Probe Measurements †

by
Adrien Vasseur
1,*,
Nicolas Binder
1,
Fabrizio Fontaneto
2 and
Jean-Louis Champion
3
1
ISAE-SUPAERO, Université de Toulouse, 31400 Toulouse, France
2
von Karman Institute for Fluid Dynamics, Chaussée de Waterloo 76, 1640 Rhode-Saint-Genèse, Belgium
3
Safran Tech, Rue des jeunes Bois, 78117 Châteaufort, France
*
Author to whom correspondence should be addressed.
†
This paper was published in the proceedings of the XXVI Symposium on Measuring Techniques in Turbomachinery Transonic and Supersonic Flow in Cascades and Turbomachines (MTT26), Pisa, Italy, 28–30 September 2023 under the https://doi.org/10.1088/1742-6596/2511/1/012025.
Int. J. Turbomach. Propuls. Power 2024, 9(2), 16; https://doi.org/10.3390/ijtpp9020016
Submission received: 28 November 2023 / Revised: 19 March 2024 / Accepted: 18 April 2024 / Published: 8 May 2024
(This article belongs to the Special Issue Selected Papers from the XXVI Biennial Symposium on Measuring Techniques in Turbomachinery)
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Abstract

Wall proximity affects the accuracy of pressure probe measurements with a particularly strong impact on multi-hole probes. The wall-related evolution of the calibration of two hemispheric L-shaped 3D-printed five-hole probes was investigated in a low-speed wind tunnel. Pressure measurements and 2D particle image velocimetry were performed. The wall proximity causes the probe to measure a flow diverging from the wall, whereas the boundary layer causes the probe to measure a velocity directed towards the wall. Both angular calibration coefficients are affected in different manners. The error in angle measurement can reach 7°. These errors can be treated as calibration information. Acceleration caused by blockage is not the main reason for the errors. Methods to perform measurements closer to the wall are suggested.
Keywords: metrology; five-hole probes; 5HP; blockage; PIV; five-hole probe calibration metrology; five-hole probes; 5HP; blockage; PIV; five-hole probe calibration

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MDPI and ACS Style

Vasseur, A.; Binder, N.; Fontaneto, F.; Champion, J.-L. Wall-Proximity Effects on Five-Hole Probe Measurements. Int. J. Turbomach. Propuls. Power 2024, 9, 16. https://doi.org/10.3390/ijtpp9020016

AMA Style

Vasseur A, Binder N, Fontaneto F, Champion J-L. Wall-Proximity Effects on Five-Hole Probe Measurements. International Journal of Turbomachinery, Propulsion and Power. 2024; 9(2):16. https://doi.org/10.3390/ijtpp9020016

Chicago/Turabian Style

Vasseur, Adrien, Nicolas Binder, Fabrizio Fontaneto, and Jean-Louis Champion. 2024. "Wall-Proximity Effects on Five-Hole Probe Measurements" International Journal of Turbomachinery, Propulsion and Power 9, no. 2: 16. https://doi.org/10.3390/ijtpp9020016

APA Style

Vasseur, A., Binder, N., Fontaneto, F., & Champion, J.-L. (2024). Wall-Proximity Effects on Five-Hole Probe Measurements. International Journal of Turbomachinery, Propulsion and Power, 9(2), 16. https://doi.org/10.3390/ijtpp9020016

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