A detailed experimental investigation was carried out to examine the influence of blade loading on the three-dimensional flow in an annular compressor cascade. Data were acquired over a range of incidence angles. Included are airfoil and endwall flow visualization, measurement of the static pressure distribution on the flow passage surfaces, and radial-circumferential traverse measurements. The data indicate the formation of a strong vortex near the rear of the blade passage. This vortex transports low-momentum fluid close to the hub toward the blade suction side and seems to be partly responsible for the occurrence of a hub corner stall. The effect of increased loading on the growth of the hub corner stall and its impact on the passage blockage are discussed. Detailed mapping of the blade boundary layer was done to determine the loci of boundary layer transition and flow separation. The data have been compared with results from an integral boundary layer method.
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October 1988
Research Papers
Experimental Investigation of the Three-Dimensional Flow in an Annular Compressor Cascade
H. D. Schulz,
H. D. Schulz
Institut fu¨r Strahlantriebe und Turboarbeitsmaschinen, Rheinisch-Westfa¨lische Technische Hochschule, Aachen, Federal Republic of Germany
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H. D. Gallus
H. D. Gallus
Institut fu¨r Strahlantriebe und Turboarbeitsmaschinen, Rheinisch-Westfa¨lische Technische Hochschule, Aachen, Federal Republic of Germany
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H. D. Schulz
Institut fu¨r Strahlantriebe und Turboarbeitsmaschinen, Rheinisch-Westfa¨lische Technische Hochschule, Aachen, Federal Republic of Germany
H. D. Gallus
Institut fu¨r Strahlantriebe und Turboarbeitsmaschinen, Rheinisch-Westfa¨lische Technische Hochschule, Aachen, Federal Republic of Germany
J. Turbomach. Oct 1988, 110(4): 467-478 (12 pages)
Published Online: October 1, 1988
Article history
Received:
December 18, 1987
Online:
November 9, 2009
Citation
Schulz, H. D., and Gallus, H. D. (October 1, 1988). "Experimental Investigation of the Three-Dimensional Flow in an Annular Compressor Cascade." ASME. J. Turbomach. October 1988; 110(4): 467–478. https://doi.org/10.1115/1.3262220
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