An unsteady aerostructure coupled adjoint method is presented for computing shape sensitivities of unsteady flows with fluid–structure interactions. The nominal flow solver is an unsteady Euler solver based on a stationary Cartesian grid using transpiration boundary conditions. With Hilbert transformation, a novel damping-related cost function is defined for which the shape sensitivity can be computed by the new unsteady aerostructure coupled adjoint method. The capability of the new method is demonstrated by a successful airfoil shape optimization for flutter suppression.


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    Title :

    Unsteady Aerostructure Coupled Adjoint Method for Flutter Suppression


    Contributors:
    Zhang, Zhichao (author) / Chen, P. C. (author) / Yang, Shuchi (author) / Wang, Zhicun (author) / Wang, Qiqi (author)

    Published in:

    AIAA Journal ; 53 , 8 ; 2121-2129


    Publication date :

    2015-06-09


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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