Abstract:To further enhance the power load of the ducted propeller, a method of embedding a small part of the blade tip into the internal wall of duct body is proposed to improve the borders of slipstream and flow pattern around the tip. Then, the flow field and aerodynamic characteristics of the axial flow state are calculated and analyzed by using the computational fluid dynamics (CFD) method. The comparisons of aerodynamic forces among the propeller, the ducted propeller and the embedded ducted propeller with the same diameter are performed under the same working condition.