This study investigated multi-winglet availability in transonic civil aircraft and the aerodynamics of changing the winglet attachment position for the main wing. Multi-winglet decreases drag for wingtip vortex dispersion and increases lift due to gaps between the winglets, but previous studies have only been investigated under subsonic conditions. Also, the past perspective was on the effect validation of the winglet pluralization; no study was performed regarding the position of the multi-winglet on the main wing. We diverted this multiplying concept to a transonic civil aircraft and analyzed the aerodynamics of its model with three nonplanar winglets placed on the upwind and downwind sides of the main wing. Furthermore, we compared the results to the computational mode without any winglet. As a result, both multi-winglet models improved the lift-to-drag ratio of the whole body compared to the no-winglets model because the connection of the winglets and the main-wing shock waves enhanced lift by expanding the negative pressure area on the main wing to the multi-wing tips. Moreover, the lift-to-drag ratio of the downwind type was higher than the upwind type because each shock wave on the multi-winglet extended by the shock on the main wing in the upwind type, which increased the wave drag.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Aerodynamic Efficacy of Changing the Chordwise Installation Position of Multi-winglet on Commercial Aircraft


    Weitere Titelangaben:

    Lect. Notes Electrical Eng.


    Beteiligte:
    Fu, Song (Herausgeber:in) / Kobayashi, Erina (Autor:in) / Chiba, Kazuhisa (Autor:in)

    Kongress:

    Asia-Pacific International Symposium on Aerospace Technology ; 2023 ; Lingshui, China October 16, 2023 - October 18, 2023



    Erscheinungsdatum :

    02.07.2024


    Format / Umfang :

    13 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    MULTI-OBJECTIVE AERODYNAMIC OPTIMIZATION OF A CIVIL AIRCRAFT WINGLET

    Soreshjani, M. Heidari / Jahangirian, A. | British Library Conference Proceedings | 2021


    Effect of Chordwise Slots on Aerodynamic Efficiency

    Gunasekaran, Sidaard / Gerham, Tim | AIAA | 2018


    Aircraft winglet

    ZICKUHR THOMAS DEAN | Europäisches Patentamt | 2017

    Freier Zugriff

    Winglet for aircraft and aircraft equipped with such winglet

    CHEN YONG / YU JIALEI / ZHAI CHEN et al. | Europäisches Patentamt | 2023

    Freier Zugriff