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TECHNICAL PAPERS

Considerations for Using 3-D Pneumatic Probes in High-Speed Axial Compressors

[+] Author and Article Information
Simon Coldrick, Paul Ivey

School of Engineering, Cranfield University, Bedford, United Kingdom

Roger Wells

Alstom Power Limited, Lincoln, United Kingdom

J. Turbomach 125(1), 149-154 (Jan 23, 2003) (6 pages) doi:10.1115/1.1515334 History: Received October 15, 2001; Online January 23, 2003
Copyright © 2003 by ASME
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References

Figures

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Probe head schematic and hole numbering convention
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Four-hole probe for low speed (left), current probe for high speed (right)
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Calibration graph for all Mach numbers and angles
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Calibration graph at Mach 0.7
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Pressure through the unblocked cascade (left) and the cascade with a 3-mm cylindrical probe (right)
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Percent of cascade total mass flow through each passage
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Pressure coefficient K with angle at mid height
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Speed plot in the reference flow
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Speed around the 3 mm probe in the cascade
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Speed around the 2-mm probe in the cascade
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Total pressure 25% chord downstream of stator row
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Total pressure 25% chord downstream of stator row with 3-mm probe

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