The miniature multihole pneumatic pressure probe is widely regarded as a cost-effective, easy-to-use, and accurate method for performing two- or three-dimensional flow field measurements in turbomachinery. The major downside to the use of these probes is that the influence of fabrication imperfections on probe characteristics necessitates an extensive and highly time-intensive and, therefore, costly calibration of each individual probe. Unless these probes can be fabricated to such standards that make individual probe calibrations superfluous, the only way to significantly reduce the time and costs associated with probe calibration is to shorten the calibration process. The latter is only possible if all essential information can be obtained from less calibration data. This paper describes an approach to the calibration of a series of multihole pressure probes in which advanced computational methods are used to make this possible. By exploiting the key features of a probe’s characteristic this approach requires only a fraction of the size of a conventional calibration database for the accurate modeling of the relationships between port pressures and flow conditions. As a result, calibration time and costs can be reduced without the sacrifice of quality.
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July 2005
Technical Papers
Accelerating the Calibration of Multihole Pressure Probes by Applying Advanced Computational Methods
Arnoud R. C. Franken,
Arnoud R. C. Franken
School of Engineering, Cranfield University, Cranfield, Bedfordshire MK43 0AL, United Kingdom
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Paul C. Ivey
Paul C. Ivey
School of Engineering, Cranfield University, Cranfield, Bedfordshire MK43 0AL, United Kingdom
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Arnoud R. C. Franken
School of Engineering, Cranfield University, Cranfield, Bedfordshire MK43 0AL, United Kingdom
Paul C. Ivey
School of Engineering, Cranfield University, Cranfield, Bedfordshire MK43 0AL, United Kingdom
Contributed by the International Gas Turbine Institute (IGTI) of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF TURBOMACHINERY. Paper presented at the International Gas Turbine and Aeroengine Congress and Exhibition, Vienna, Austria, June 13–17, 2004, Paper No. 2004-GT-53434. Manuscript received by IGTI, October 1, 2003; final revision, March 1, 2004. IGTI Review Chair: A. J. Strazisar.
J. Turbomach. Jul 2005, 127(3): 425-430 (6 pages)
Published Online: July 8, 2005
Article history
Received:
October 1, 2003
Revised:
March 1, 2004
Online:
July 8, 2005
Citation
Franken , A. R. C., and Ivey, P. C. (July 8, 2005). "Accelerating the Calibration of Multihole Pressure Probes by Applying Advanced Computational Methods ." ASME. J. Turbomach. July 2005; 127(3): 425–430. https://doi.org/10.1115/1.1791285
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