Analytical methods to predict the interference between lifting surfaces and high-bypass-ratio turbofan engines are described. A three-dimensional nonplanar vortex-lattice lifting surface method is used to predict the characteristics of a wing with leading-edge slat and multiple slotted trailing-edge flaps including effects of externally induced velocity fields. A flow model of the wake of a high-bypass-ratio turbofan is described which is capable of predicting the induced velocity field both inside and outside the jet wake. These methods are combined to predict the longitudinal characteristics of several STOL transport models utilizing externally-blown flaps and comparisons with data are shown. The results indicate good agreement between experiment and theory for various configurations under a wide range of power conditions.


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    Titel :

    Calculation of aerodynamic characteristics of STOL aircraft with externally-blown jet-augmented flaps.


    Beteiligte:

    Kongress:

    American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting ; 1972 ; San Diego, CA


    Erscheinungsdatum :

    01.01.1972


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



    Calculation of the longitudinal aerodynamic characteristics of STOL aircraft with externally-blown jet-augmented flaps

    Dillenius, Marnix F. E. / Mendenhall, Michael R. / Spangler, S. B. | TIBKAT | 1974


    Externally blown flaps, aerodynamic feasibility study of a STOL-transporter

    KUEHL Dipl-lng, P. / WELTE Dipl-lng, D. | Emerald Group Publishing | 1971



    Blown Flaps for Stol Operation

    Schwartzberg, Milton A. | Emerald Group Publishing | 1959