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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

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


    Additional title:

    Lect. Notes Electrical Eng.


    Contributors:

    Conference:

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



    Publication date :

    2024-07-02


    Size :

    13 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    MULTI-OBJECTIVE AERODYNAMIC OPTIMIZATION OF A CIVIL AIRCRAFT WINGLET

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


    Aircraft winglet

    ZICKUHR THOMAS DEAN | European Patent Office | 2017

    Free access

    Effect of Chordwise Slots on Aerodynamic Efficiency

    Gunasekaran, Sidaard / Gerham, Tim | AIAA | 2018


    Winglet for aircraft and aircraft equipped with such winglet

    CHEN YONG / YU JIALEI / ZHAI CHEN et al. | European Patent Office | 2023

    Free access