In this paper, the ability of the forward-swept supersonic wing to simultaneously reduce aerodynamic drag and sonic boom under cruise conditions is investigated via the optimization of airfoil distribution. The forward-swept wing is superior to the conventional backward-swept delta wing for reducing sonic booms. To realize optimum aerodynamic characteristics, airfoil distributions for the forward-swept and backward-swept wings were acquired and compared for low-drag, low-boom wing abilities. For sonic boom evaluations, the augmented Burgers equation and multipole analysis were applied to near-field pressure distributions calculated by Euler simulations of both configuration samples. This process was time-consuming, so a multifidelity approach was introduced with a multi-additional sampling. Low-drag and low-boom solutions were obtained for both planforms; the forward-swept wing was found to reduce sonic boom and aerodynamic drag more efficiently than the backward-swept wing. Based on functional analysis of variance, different design variables were noted to contribute toward reductions of the various objective functions. In case of sonic boom reduction via comparison of the low-boom solutions, for the given airfoil geometries at the wing tips for the forward-swept and backward-swept wings, the former had a larger twisted-down angle and the latter had a stronger camber shape.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Supersonic Forward-Swept Wing Design Using Multifidelity Efficient Global Optimization


    Contributors:

    Published in:

    Journal of Aircraft ; 59 , 4 ; 1027-1040


    Publication date :

    2022-07-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Multifidelity Analysis and Optimization for Supersonic Design

    Kroo, Ilan / Willcox, Karen / March, Andrew et al. | NTRS | 2010


    Forward swept wing design

    KRONE, JR., N. | AIAA | 1980


    Multifidelity Analysis and Optimization for Supersonic Design

    I. Kroo / K. Willcox / A. March et al. | NTIS | 2010



    Multifidelity Design Optimization of Low-Boom Supersonic Jets

    Choi, Seongim / Alonso, Juan J. / Kroo, Illan M. et al. | AIAA | 2008