An on-the-fly unsteady adjoint-based aerodynamic and aeroacoustic optimization methodology is presented, aiming to achieve practical engineering applications to explore high-efficiency and low-noise design for aerodynamic shapes. Firstly, a novel on-the-fly hybrid CFD-CAA approach is developed with a close integration of unsteady Reynolds-averaged Navier–Stokes equations and a fully viscous time-domain FW-H formulation. Subsequently, an adjoint-based sensitivity analysis method is proposed for unsteady aerodynamic and aeroacoustic problems with either stationary or moving boundaries, wherein a unified architecture for discrete-adjoint sensitivity analysis of both aerodynamics and aeroacoustics is achieved by integrating the on-the-fly hybrid CFD-CAA approach. The on-the-fly approach facilitates direct evaluation of partial derivatives required for solving adjoint equations, eliminating the need for explicitly preprocessing flow and adjoint variables at all time levels in a standalone adjoint CAA solver and consequently substantially reducing memory consumption. The proposed optimization methodology is implemented within an open-source suite SU2. Results show that the proposed on-the-fly adjoint methodology is capable of achieving highly accurate sensitivity derivatives while significantly reducing memory requirements by an order of magnitude, and further demonstrations of single-objective and coupled aerodynamic and aeroacoustic optimizations highlight the potential of the proposed method in exploring high-efficiency and low-noise design for aerodynamic shapes.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    On-the-Fly Unsteady Adjoint Aerodynamic and Aeroacoustic Optimization Method


    Beteiligte:
    Zhi, Haolin (Autor:in) / Xiao, Tianhang (Autor:in) / Qin, Ning (Autor:in) / Deng, Shuanghou (Autor:in) / Lu, Zhaoyan (Autor:in)

    Erschienen in:

    AIAA Journal ; 62 , 12 ; 4779-4797


    Erscheinungsdatum :

    01.12.2024




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    A Discrete Adjoint Framework for Unsteady Aerodynamic and Aeroacoustic Optimization

    Zhou, Beckett Yx / Albring, Tim A. / Gauger, Nicolas R. et al. | AIAA | 2015


    Unsteady Adjoint Method for Aeroacoustic Propeller Optimization

    Soemarwoto, Bambang / van der Ven, Harmen / Kok, Johan et al. | AIAA | 2021


    UNSTEADY ADJOINT METHOD FOR AEROACOUSTIC PROPELLER OPTIMIZATION

    Soemarwoto, Bambang / Ven, Harmen Van Der / Kok, Johan et al. | TIBKAT | 2021


    An Efficient Unsteady Aerodynamic and Aeroacoustic Design Framework Using Discrete Adjoint

    Zhou, Beckett Yx / Albring, Tim A. / Gauger, Nicolas R. et al. | AIAA | 2016


    A Discrete Adjoint Framework for Unsteady Aerodynamic and Aeroacoustic Optimization (AIAA 2015-3355)

    Zhou, Beckett Y. / Albring, Tim A. / Gauger, Nicolas R. et al. | British Library Conference Proceedings | 2015