03.4 - Applied Aerodynamics
AERODYNAMIC OPTIMIZATION DESIGN OF DOUBLE BLUNT ROTOR AIRFOIL WITH LARGE THICKNESS IN FORWARD AND REVERSE FLOW
Y.M. Yao¹, X.D. Yang¹; ¹School of Aeronautics, Northwestern Polytechnical University, China
This paper aims to reduce the drag coefficients of the airfoil at the root segment of the coaxial rigid-rotor blades in forward and reverse flow, optimizes two double blunt airfoils with relative thicknesses of 26% and 40% respectively using a multi-point and complex constraints optimization method. The results show the drag coefficient in forward and reverse flow can be reduced to some extent.