Design and Development of an Aerofoil Using Bézier Curve

The objective of this study is to develop a new aerofoil shape to enhance aerodynamic efficiency in turbo machinery applications. Numerical and experimental analyses were conducted by solving the RANS equations using the k-omega SST and standard k-epsilon models. A wind tunnel was employed to measure the lift and drag coefficients of the aerofoil, and these results were compared with those of existing turbo machinery designs. The results indicate a 38% increase in the peak lift coefficient and a 25% improvement in stall characteristics. Additionally, a 20% reduction in overall drag was observed across both methods. The novelty of this work lies in creating a more curved aerofoil using the Bézier curve method and the subsequent assessment of its aerodynamic performance through numerical and experimental approaches. The proposed method can be applied to various aerofoil types to enhance the aerodynamic performance of low-speed turbo machinery.