This paper presents an approach to shape an aircraft to equivalent-area-based objectives using the discrete adjoint approach. Equivalent areas can be obtained either using reversed the augmented Burgers equation or direct conversion of off-body pressures into equivalent areas. Formal coupling with computational fluid dynamics allows computation of sensitivities of equivalent-area objectives with respect to aircraft shape parameters. The exactness of the adjoint sensitivities is verified against derivatives obtained using the complex step approach. This methodology has the benefit of using designer-friendly equivalent areas in the shape design of low-boom aircraft. Shape optimization results with equivalent-area cost functionals are discussed and further refined using ground loudness-based objectives.


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    Title :

    Application of Adjoint Methodology to Supersonic Aircraft Design Using Reversed Equivalent Areas


    Contributors:

    Published in:

    Journal of Aircraft ; 51 , 6 ; 1873-1882


    Publication date :

    2014-04-23


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Application of Adjoint Methodology to Supersonic Aircraft Design Using Reversed Equivalent Areas

    Rallabhandi, S.K. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2013




    Adjoint-based method for supersonic aircraft design using equivalent area distribution

    Palacios, Francisco / Alonso, Juan / Colonno, Michael et al. | AIAA | 2012


    Adjoint-based Method for Supersonic Aircraft Design Using Equivalent Area Distribution

    Palacios, F. / Alonso, J. / Colonno, M. et al. | British Library Conference Proceedings | 2012