A wind tunnel investigation was conducted to determine the aerodynamic interference associated with the installation of a long duct, flow-through nacelle on a straight unswept untapered supercritical wing. Experimental data was obtained for the verification of computational prediction techniques. The model was tested in the 16-Foot Transonic Tunnel at Mach numbers from 0.20 to 0.875 and at angles of attack from about 0 deg to 5 deg. The results of the investigation show that strong viscous and compressibility effects are present at the transonic Mach numbers. Numerical comparisons show that linear theory is adequate for subsonic Mach number flow prediction, but is inadequate for prediction of the extreme flow conditions that exist at the transonic Mach numbers.


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    Title :

    Experimental Investigation of Nacelle-Pylon Installation on an Unswept Wing at Subsonic and Transonic Speeds


    Contributors:

    Publication date :

    1984


    Size :

    203 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






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