Aerodynamics of Coaxial Propellers in Unmanned Aerial Vehicle (UAV) System
An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without a human pilot aboard (Wikipedia). Compared to manned aircraft with fixed-wing, UAVs have often utilized propellers (rotary-wing) to obtain lift force for several reasons. In this study, we have examined aerodynamic characteristics of coaxial propellers and provide aerodyanamic advantages of the coaxial propellers, compared to a single propeller.
[Figure 1] CFD analysis for a single propeller
[Figure 2] CFD analysis for a coaxial propeller