One of the advances in computational design has been the development of adjoint methods allowing efficient calculation of sensitivities in gradient-based shape optimization. This paper discusses two new applications of adjoint methodology that have been developed to aid in sonic boom mitigation exercises. In the first, equivalent area targets are generated using adjoint sensitivities of selected boom metrics. These targets may then be used to drive the vehicle shape during optimization. The second application is the computation of adjoint sensitivities of boom metrics on the ground with respect to parameters such as flight conditions, propagation sampling rate, and selected inputs to the propagation algorithms. These sensitivities enable the designer to make more informed selections of flight conditions at which the chosen cost functionals are less sensitive.


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    Title :

    Application of Adjoint Methodology in Various Aspects of Sonic Boom Design


    Contributors:

    Conference:

    AIAA Applied Aerodynamics Conference ; 2014 ; Atlanta, GA, United States
    AIAA Aviation and Aeronautics Forum and Exposition (AVIATION 2014) ; 2014 ; Atlanta, GA, United States


    Publication date :

    2014-06-16


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





    Application of Adjoint Methodology in Various Aspects of Sonic Boom Design (AIAA 2014-2271)

    Rallabhandi, S. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2014


    Sonic Boom Adjoint Methodology and Its Applications

    Rallabhandi, S. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2011