Table 1 Geometric dimensions of the ducted tail rotor
From: Numerical method to compute acoustic scattering effect of a moving source
Rotor | |
Radius | 297 mm |
Number of blades | 11 |
Solidity | 0.4951 |
Twist angle | −12° |
Tip speed | 74.6 m/s |
Airfoil | NACA23012 (r/R = 0.35 ~ 1.0) |
Duct | |
Tip clearance gap | 0.01R |
Inlet radius | 0.2R |
Diffuser length | 0.7R |
Diffuser angle | 4° |