The overall and blade-element performance of a transonic compressor stage is presented over the stable operating range at rotative speeds from 50 to 100 percent of design speed. Stage peak efficiency of 0.784 was obtained at a weight flow of 28.6 kilograms per second and a pressure ratio of 1.706. Stall margin at design speed was 11.4 percent. The peak efficiency being significantly less than design efficiency was attributed to: (1) the stator loss and the radial gradient of losses being much higher than design, (2) the losses and blockages associated with the rotor part-span dampers not being incorporated into the design, and (3) mismatch of the rotor and stator badle elements. (Author)


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    Titel :

    Performance of a Single-Stage Axial-Flow Transonic Compressor Stage with a Blade Tip Solidity of 1.7


    Beteiligte:
    R. D. Moore (Autor:in) / L. Reid (Autor:in)

    Erscheinungsdatum :

    1972


    Format / Umfang :

    113 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch





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    THE COMBINED TRANSONIC AXIAL AND CENTRIFUGAL STAGE COMPRESSOR

    RAHNKE, C. J. / CARMODY, R. H. | SAE Technical Papers | 1961