23rd Congress of International Council of the Aeronautical Sciences, 8-13 September, 2002, Toronto, Canada
Paper ICAS 2002-5.11.4

IMPACT OF FLOW QUALITY IN TRANSONIC CASCADE WIND TUNNELS: MEASUREMENTS IN AN HP TURBINE CASCADE

D. Corriveau, S. A. Sjolander
Carleton University, Canada

Keywords: turbine aerodynamics, transonic, cascade wind tunnel, off-design, flow quality

This study presents measurements made in a transonic linear turbine cascade to assess the impact of flow quality on the desired results. The results demonstrate that the cascade outlet flow periodicity alone cannot be used as a reliable criterion for judging the inlet flow quality. The inlet flow uniformity is shown to have a significant impact on the measured cascade performance.

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