We are developing a prototype underwater glider for subsea payload delivery. The idea is to use a glider to deliver payloads for subsea installations. In this type of application, the hydrodynamic forces and dynamic stability of the glider is of particular importance, as it has implications on the glider's endurance and operation. In this work, the effect of two different wing forms, rectangular and tapered, on the hydrodynamic characteristics and dynamic stability of the glider were investigated, to determine the optimal wing form. To determine the hydrodynamic characteristics, tow tank resistance tests were carried out using a model fitted alternately with a rectangular wing and tapered wing. Steady-state CFD analysis was conducted using the hydrodynamic coefficients obtained from the tests, to obtain the lift, drag and hydrodynamic derivatives at different angular velocities. The results show that the rectangular wing provides larger lift forces but with a reduced stability envelope. Conversely, the tapered wing exhibits lower lift force but improved dynamic stability.


    Access

    Download


    Export, share and cite



    Title :

    Effect of wing form on the hydrodynamic characteristics and dynamic stability of an underwater glider


    Contributors:


    Publication date :

    2017




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Analysis Hydrodynamic Characteristics of Variable Mode Wing of Underwater Glider

    Wang, Cheng / Sun, Tongshuai / Wang, Yanhui et al. | IEEE | 2020


    Scalable wing device for underwater glider

    XU LINGLING / WANG JIAN / ZHANG HUA et al. | European Patent Office | 2020

    Free access

    Underwater glider with movable horizontal wing

    WANG TIANLIN | European Patent Office | 2021

    Free access

    Wing body fusion underwater glider with sweepforward wing layout

    DU XIAOXU / PAN GUANG / SONG BAOWEI et al. | European Patent Office | 2022

    Free access

    UNDERWATER GLIDER

    CHOI HYEUNG SIK / HA JI HOON / JEON JI HYE et al. | European Patent Office | 2016

    Free access