Aerodynamics Layout Design And Performance Analysis For Ducted Fan MAV

Ducted-fan MAV has the advantages of hover and VTOL(Vertical Take-off and Landing),canadapt to the complex urban and mountain environment, not only with the "perch and observe"capability, but also can flight towards the target, provide accurate positioning of the target. It have agood structural performance or mobility with strong adaptability to a wide range of applications,wherefore it become one research focus of micro aerial vehicle in the world. In this thesis, a ductedcoaxial rotor MAV was designed based on the aerodynamic layout of Ducted-fan MAV at domesticand foreign, and calculated the aerodynamic performance of the ducted fan system and vehicle by themethod of CFD.First of all, the aerodynamic layout of the ducted fan vehicle was designed, including the liftsystem、fuselage、control system and the other assembly, that provide geometric model for thenumerical calculation. Secondary, developed a method of numerical calculation for the N-S equationadded the momentum source terms, and has been verified by means of example. Once again, analyzedthe aerodynamic performance of the ducted fan system including the Isolated rotor and ducted fanby the method that was developed in the last chapter, then analyzed and compared the results. In theend,analyzed the aerodynamic performance of the aerial vehicle in different working conditions.In this paper, it make a preliminary understanding of the aerodynamic performance to such aerialvehicle,though aerodynamic layout design and performance analysis for the ducted fan MAV,obtained some interesting results to provide a reference for future research of such aerial vehicle。...