This paper aims to assess the aeroacoustic and aerodynamic performance of a morphing airfoil with a flexible trailing edge (FTE). The objective is to make a comparison of the aerodynamic noise characteristics between the conventional airfoil with a flap and morphing airfoil and analyse the noise reduction mechanisms of the morphing airfoil.

    Design/methodology/approach

    The computational fluid dynamic method was used to calculate the aerodynamic coefficients of morphing airfoil and the Ffowcs-Williams and Hawking’s acoustic analogy methods were performed to predict the far-field noise of different airfoils.

    Findings

    Results show that compared with the conventional airfoil, the morphing airfoil can generate higher lift and lower noise, but a greater drag. Additionally, the noise caused by the one-unit lift of the morphing airfoil is significantly lower than that of the conventional airfoil. For the morphing airfoil, the shedding vortex in the trailing edge was the main noise resource. As the angle of attack (AoA) increases, the overall sound pressure level of the morphing airfoil increases significantly. With the increase of the trailing edge deflection angle, the amplitude and the period of sound pressure of the morning airfoil fluctuation increase.

    Practical implications

    Presented results could be very useful during designing the morphing airfoil with FTE, which has significant advantages in aerodynamic efficiency and aeroacoustic performance.

    Originality/value

    This paper presents the aerodynamic and aeroacoustic characteristics of the morphing airfoil. The effect of trailing edge deflection angle and AoA on morphing airfoil was investigated. In the future, using a morphing airfoil instead of a traditional flap can reduce the aircraft`s fuel consumption and noise pollution.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Aeroacoustic and aerodynamic characteristics of a morphing airfoil


    Beteiligte:
    Kan, Zi (Autor:in) / Li, Daochun (Autor:in) / Zhao, Shiwei (Autor:in) / Xiang, Jinwu (Autor:in) / Sha, Enlai (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2021-07-01


    Format / Umfang :

    1 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Aerodynamic and Aeroacoustic Performance of Three-element High Lift Airfoil fitted with Morphing Fillers

    Kamliya Jawahar, Hasan / Azarpeyvand, Mahdi / Silva, Carlos | AIAA | 2018


    AERODYNAMIC AND AEROACOUSTIC CHARACTERISTICS OF THE NACA 0008 AIRFOIL

    Dos Santos, F. / Botero-Bolivar, L. / Venner, C. et al. | British Library Conference Proceedings | 2022


    Knowledge Based Airfoil Aerodynamic and Aeroacoustic Design

    Greschner, Bjoern / Yu, Chao / Zheng, Shi et al. | AIAA | 2005


    Research on the Aerodynamic Characteristics of Morphing Supercritical Airfoil

    Lv, Binbin / Lei, Pengxuan / Wang, Yuanjing et al. | Springer Verlag | 2019


    Aerodynamic and Aeroacoustic Performance of Airfoils Fitted with Morphing Trailing-edges

    Kamliya Jawahar, Hasan / Ai, Qing / Azarpeyvand, Mahdi | AIAA | 2018