Computational fluid dynamics study of underwater glider with energy-saving diamond-shaped rotatable wings

Based on the current widespread use of underwater vehicles, a special type of underwater glider equipped with energy-saving diamond-structured rotatable wings that can improve the underwater vehicle's lift-drag ratio optimize hydrodynamic performance, and enhance flight quality was studied. With the support of adaptive meshing technology and Fluent's epsilon standard turbulence model, lift and drag forces were calculated when gliding steadily at 0.5 m/s under different angles of attack in the vertical plane. Compared to the traditional sweptback wing, this study obtained the best configuration scheme using a diamond-shaped glider with a wing tilt angle of 15° and aspect ratio of 3.69, effectively improving the lift-drag ratio by 7.14 %.