The aerodynamic characteristics of the ducted propeller have a direct influence on the dynamic performance of the ducted aircraft.The structural parameters that affect the aerodynamic characteristics of the culvert are quantified in this paper.By using the single variable method,the culvert model with different tip clearance,lip radius,disc installation position and culvert diffusion angle was simulated by computational fluid dynamics(CFD).By comparing and analyzing the flow field structure and lift characteristics,the influence law of the culvert propeller structure parameters on the lift increase characteristics was obtained.
维普
万方数据