Design Analysis of Ducted Propeller for Bicopter Drone Propulsion

Drones nowadays have become an important part of people's lives. Drones for transporting people or goods are considered to develop into reality. To be effective and efficient, the drone should be light but have big propulsion for big lift and thrust forces. This paper presents a way to improve the performances by designing usage of only 2 propulsion motors with ducted and special fan blades. The special designed fan blades theoretically will produce more thrust with smaller propeller size and lower RPM since combine the lift blade and momentum thrust effects. The required propulsion force to fly the drone with its payload is analyzed and detemined. Then the torque, rpm, airfoil type, Thrust Coefficient, and blade twist angles can be determined based on that propulsion force. Afterward, an evaluation is performed with fluid dynamics simulation tools to predict the forces acting on the propeller.