Integrated CFD and Experimental Evaluation of Propeller Geometry and Material Performance in Multirotor UAVs

This paper presents a comprehensive study on the aerodynamic optimization of multirotor UAVs using a hybrid approach combining Computational Fluid Dynamics (CFD) simulations and experimental wind tunnel testing. The effects of propeller disk angle of attack, rotor spacing, and material composition (PLA, ABS, PETG) were investigated under varying environmental conditions, including sub-zero temperatures. CFD analysis revealed that optimal disk angles (۱۵°–۱۸°) significantly enhance lift without increasing power consumption. Experimental results confirmed that PETG propellers exhibit superior thermal stability and maintain consistent thrust in cold environments, outperforming PLA and ABS alternatives. Additionally, increased rotor spacing and counter-rotating configurations were shown to minimize vortex interference and improve flight stability. The findings of this study provide practical insights into the aerodynamic design of multirotor drones for enhanced performance and reliability in

کلیدواژه ها:

Multirotor UAV ، Propeller design Simulation ، Wind TunnezTesting