03.3 - Basic Fluid Dynamics and Flow Control
NUMERICAL INVESTIGATION ON AERODYNAMIC PERFORMANCE OF HOVERING ROTOR IN GROUND EFFECT
X.-L. Li¹, J.-H. Xu¹, W.-P. Song¹, S.-Q. Han, Sichuan University, China; Z.-H. Han¹; ¹ Northwestern Polytechnical University, China
The flow and aerodynamic characteristics of S-76 rotor in hover are investigated, for both out-of-ground-effect (OGE) and in-ground-effect (IGE). For IGE, the thrust coefficients inside the blade are larger, which is also confirmed by pressure distribution. In addition, large press bumps and flow separations are observed near the tip under OGE, but there is no phenomenon these under IGE.