The shroud at high speed is modeled as an elliptic wing in order to construct a momentum theory method to investigate the aerodynamiccharacteristics of ducted tail rotor in hover and forward flight.
A free wake analytical model is then developed for predicting the aerodynamiccharacteristics of a scissors tail rotor and validated by numerical examples.
然后，建立了一个剪刀式尾桨气动特性计算的分析模型，并进行了验证。
3
An experimental and analytical investigation on the aerodynamiccharacteristics of a helicopter scissors tail rotor has been made.