The transition prediction capability of two different semi-empirical methods originating from fixed wing applications is studied for steady, rotary wing application. This includes the AHD criterion, used with approximated boundary-layer data, as well as the Drela eN envelope method, based on integral boundary-layer parameters. The methods have been implemented in the structured flow solver FLOWer of DLR. A two-dimensional test case (Somers airfoil) and a three-dimensional rotor test case at hover (DLR Bo 105 flight test) serve to validate the computed transition locations.


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    Title :

    RANS-Based Laminar-Turbulent Transition Prediction for Airfoil and Rotary Wing Applications Using Semi-empirical Criteria


    Contributors:
    Heister, C.C. (author) / Klein, A. (author) / Krämer, E. (author)


    Publication date :

    2013


    Size :

    8 Seiten





    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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