A novel ducted coaxial rotor UAV is developed. The ducted rotor system which utilizes the contra-rotating coaxial rotor to balance torque and uses the deflected rudder to control attitude is the main part of the UAV. The aerodynamic performance of the UAV is investigated through CFD methods and test lfight is also conducted, which shows the feasibility of applying the ducted coaxial rotor technique in VTOL UAV.%研制了一种新型共轴式涵道风扇无人机，这种无人机以涵道风扇系统为主体，采用共轴式双桨克服转矩，利用导流片实现姿态控制。应用CFD方法研究了无人机的气动性能，并进行了试飞。CFD分析和试飞证实了共轴式涵道风扇技术在垂直起落无人机上应用的可行性。
展开▼
