This paper presents results of a study, supported by Air Force Contract F33615-79-C2070 under the Low Cost High Temperature Rotor Blade Program, conducted to evaluate the predictive capabilities of the State-of-the-Art codes used in the turbine design process against aerodynamic and heat transfer data obtained at Arvin/Calspan for the Garrett Low Aspect Ratio turbine (LART). The aerodynamics of the LART was fairly well simulated by both a multistage Euler code and a 3-D Navier Stokes code. The external heat load on the vane airfoil surfaces was underestimated by both a 2-D and a 3-D boundary layer code. The heat loads in the endwall regions were well predicted by the 3-D boundary layer code. The heat load on the rotor airfoil mid-span region was well predicted by the 2-D boundary layer code. No physical mechanism for higher than predicted heat load on the vane air-foil mid-span region has been identified.


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    Title :

    Aerodynamic and heat transfer analysis of the low aspect ratio turbine


    Additional title:

    Analyse von Aerodynamik und Waermeuebergang bei Turbinen mit geringem Schlankheitsverhaeltnis


    Contributors:
    Sharma, O.P. (author) / Nguyen, P. (author) / Ni, R.H. (author) / Rhie, C.M. (author) / White, J.A. (author) / Finke, A.K. (author)

    Published in:

    AIAA-Papers ; Jul ; 1-11


    Publication date :

    1987


    Size :

    11 Seiten, 18 Bilder, 1 Tabelle, 10 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






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