Reconstructing Compressor Nonuniform Circumferential Flow Field From Spatially Undersampled Data—Part 2: Practical Application for Experiments

Abstract In the previous part of paper, a novel method to reconstruct compressor nonuniform circumferential flow field using spatially undersampled data points is developed. this applied two research articles further demonstrate potential in resolving important features associated with these nonuniformities. first experiment, static pressure at leading edge vaned diffuser high-speed centrifugal reconstructed readings from nine taps placed on hub diffuser. The magnitude and phase information for three dominant wavelets are characterized. Additionally, shows significant advantages over traditional averaging methods calculating repeatable mean values pressure. While multi-wavelet approximation method, errors one dropout measurement 70% less than pitchwise-averaging method. second full annulus total downstream Stator 2 three-stage axial small segment representing 20% coverage annulus. Results show very good agreement between profile experiment variety spanwise locations near shroud. blade row interactions accounting passage-to-passage variations resolved profile.