The current paper presents the results of numerical and experimental clocking investigations performed in a high-pressure transonic turbine with a downstream vane row. The objective was a detailed analysis of shock and wake interactions in such a 1.5 stage machine while clocking the vanes. Therefore a transient 3D-Navier Stokes calculation was done for two clocking positions and the three dimensional results are compared with Laser-Doppler-Velocimetry measurements at midspan. Additionally the second vane was equipped with fast response pressure transducers to record the instantaneous surface pressure for 20 different clocking positions at midspan.
The Effect of Vane Clocking on the Unsteady Flowfield in a One and a Half Stage Transonic Turbine
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Schennach, O, Pecnik, R, Paradiso, B, Go¨ttlich, E, Marn, A, & Woisetschla¨ger, J. "The Effect of Vane Clocking on the Unsteady Flowfield in a One and a Half Stage Transonic Turbine." Proceedings of the ASME Turbo Expo 2007: Power for Land, Sea, and Air. Volume 6: Turbo Expo 2007, Parts A and B. Montreal, Canada. May 14–17, 2007. pp. 793-802. ASME. https://doi.org/10.1115/GT2007-27848
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