In the last years, Computational Fluid Dynamics (CFD) driven aerodynamic shape design has drawn increased interest. Nevertheless, the impact of the existing CFD based shape optimization methods on practical aircraft design is rather limited, to the best of our knowledge. With the purpose to overcome these difficulties, in this paper an accurate, robust and computationally efficient approach to the multipoint constrained optimization of wing-body aircraft configurations is presented. It is based on the complete aerodynamic model (Navier-Stokes computations), expands the globality of optimum search (by employing mixed deterministic/probabilistic Genetic Algorithms in combination with a Reduced-Order Models method), and handles simultaneously a large number of constraints. The present algorithm essentially extends the capabilities of the method for aerodynamic design of 3D isolated transport-type wings, previously developed by the authors ['Constrained Aerodynamic Optimization of Three-Dimensional Wings Driven by Navier-Stokes Computations', AIAA Journal, Vol. 43, No. 9, 2005, pp.1946-1957.]. In industry, the success of the method should be assessed through practical optimization of realistic aerodynamic configurations. The capability of the method has been applied to optimization of transport-type aircraft configurations by the example of ARA M-100 NASA test case wing-body shape. It was demonstrated that the proposed method allows to ensure a low drag level in cruise regime, to accurately handle a required large number of constraints and to achieve a good off-design performance in take-off conditions and high Mach zone.


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    Title :

    Efficient Parallel Algorithm for multiconstrained of wing body configurations


    Additional title:

    Effizienter Parallelalgorithmus zur aerodynamischen Optimierung von Nurflügeln


    Contributors:
    Peigin, S. (author) / Epstein, B. (author)


    Publication date :

    2008


    Size :

    8 Seiten, 12 Bilder, 10 Quellen





    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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