UNSPECIFIED (1992) THE APPLICATION OF PARTICLE IMAGE VELOCIMETRY (PIV) IN A SHORT-DURATION TRANSONIC ANNULAR TURBINE CASCADE. In: 36TH INTERNATIONAL CONGRESS AND EXPOSITION ON GAS TURBINE AND AEROENGINE, JUN 03-06, 1991, ORLANDO, FL.

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Abstract

A series of experiments have been performed to demonstrate the application of Particle Image Velocimetry (PIV) to turbomachinery flows. The tests were performed at transonic speeds on a fully annular engine size turbine nozzle guide vane. The vane cascade was installed in a short-duration Isentropic Light Piston Cascade (ILPC) test facility operating with high inlet turbulence levels. The technique has been shown to map the whole flow field with a resolution of 0.5 mm. The quality of the results obtained is not significantly affected by local turbulence rates. The accuracy of the measurements is put at around 4 percent of absolute velocity and is limited by the quality of the image on the film plane. The velocities derived from the PIV images have been compared with predictions from a three-dimensional viscous numerical calculation. It is shown that the experimental and predicted results are in good agreement. It is considered that this technique has considerable potential in application to turbomachinery flow field diagnostics.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	T Technology > TJ Mechanical engineering and machinery
Journal or Publication Title:	JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME
Publisher:	ASME-AMER SOC MECHANICAL ENG
ISSN:	0889-504X
Date:	July 1992
Volume:	114
Number:	3
Number of Pages:	6
Page Range:	pp. 504-509
Publication Status:	Published
Title of Event:	36TH INTERNATIONAL CONGRESS AND EXPOSITION ON GAS TURBINE AND AEROENGINE
Location of Event:	ORLANDO, FL
Date(s) of Event:	JUN 03-06, 1991
URI:	http://wrap.warwick.ac.uk/id/eprint/21886

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