This paper describes the design and optimization of the shape of the wings of "OASYS" research project underwater glider, by maximizing the lift to drag ratio through using computational fluid dynamics. Different wing layouts were examined based on the resulting lift and drag forces. The best NACA profile for this application was selected based on the lift and drag coefficients, the stall angle and the angle of attack that generates the highest lift to drag ratio. The shape of the wing was then determined by examining the effect of the sweep angle, front and back tapering angles, and the combination of the two on total lift and drag forces. Two dimensional and three-dimensional simulations were performed in "XFOIL" and "ANSYS Fluent" software, the type of simulation depending on the property examined. This resulted in 91 simulations. The results of each wing layout were assessed based on lift forces, drag forces, and the ratio between the two.
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