Analysis on Unsteady Aerodynamic Characteristics of Helicopter Ducted Tail Rotor with Guide Vand
Based on the cell remeshing technology,the transient unsteady numerical simulation method of helicopter ducted tail rotor is established,and the unsteady aerodynamic characteristics of a sample ducted tail rotor helicopter are calculated.The ground bench test of ducted tail rotor is carried out to verify the accuracy of the calculation results and method.By analyzing the unsteady aerodynamic characteristics of a sample ducted tail rotor helicopter,the aerodynamic mechanism of the interaction between tail rotor and duct is clarified,and the design parameters of ducted tail rotor are analyzed.The configuration of the world's advanced helicopter guide vane is analyzed.And the aerodynamic characteristic of the helicopter with guide vane in the ducted tail rotor is calculated.The interaction between the ducted tail rotor and guide vane is also explained mechanically.
NETL
NSTL
万方数据
