Micro aerial vehicles (MAVs) encounter aerodynamic challenges due to their small size and low flying speed, often experiencing stall at low angles of attack. This study aims to investigate the effects of sectional airfoil geometries, including thickness, maximum thickness location, and camber, on the aerodynamic performance of fixed-wing MAVs inspired by the passive control method observed in Humpback whales. The investigation employs 3D, unsteady, viscous, and turbulent simulations using the detached eddy simulation turbulence model to understand the physical phenomena. Results reveal that increasing the thickness of the infinite wing by approximately 9.5% results in a decrease of lift and drag coefficients by 19.8% and 12%, respectively. Furthermore, shifting the maximum thickness location from 18%c to 36%c enhances the lift-to-drag ratio (L/D) by nearly 16%. However, an increase in camber leads to a rise in drag coefficient. In conclusion, this research sheds light on the aerodynamic effects of sectional airfoil geometries on fixed-wing MAVs, particularly in pre-stall conditions. Understanding these effects contributes to the development of strategies for improving MAV maneuverability and aerodynamic performance.

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