The numerical optimization method for wings in transonic flow presented associates a constrained minimization program, a fast direct aerodynamic code, and a shape modification technique. Possibilities of optimization with regard to the total aerodynamic coefficients of a wing are shown. A method for estimating inviscid drag is recommended. Two application cases of the optimization method in the quasi inverse mode, by aiming at a given pressure distribution, are described. One is the adaptation of the inner part of a transport aircraft wing, a problem to which optimization is a well suited approach, considering the highly three-dimensional phenomena involved, and the necessity of respecting constraints related to the aircraft design. Another example, the modification of a four-engined jet aircraft in order to reduce perturbations created by the propulsive system, shows that interference problems between the wing and other components of the aircraft can also be approached by numerical optimization.


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    Title :

    Numerical Optimization of Wings in Transonic Flow


    Contributors:
    D. Destarac (author) / J. Reneaux (author) / D. Gisquet (author)

    Publication date :

    1990


    Size :

    12 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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