This paper presents the experimental investigations of NACA0012 airfoil aerodynamiccharacteristics improvement by airfoil tail tailoring (30% chord part ) in low speed windtunnel. Experiment Renolds number range is 4....This paper presents the experimental investigations of NACA0012 airfoil aerodynamiccharacteristics improvement by airfoil tail tailoring (30% chord part ) in low speed windtunnel. Experiment Renolds number range is 4.9x 10~5 to 6.5x10^5, and the angle--of--attackrange is -12° to 12°. The comparisons of experimental results show that: tail tailoring canincrease both airfoil lift and lift--to--drag ratio in the positive angle--of--attack range; it candecrease airfoil drag in the negative angle--of--attack range.展开更多
文摘This paper presents the experimental investigations of NACA0012 airfoil aerodynamiccharacteristics improvement by airfoil tail tailoring (30% chord part ) in low speed windtunnel. Experiment Renolds number range is 4.9x 10~5 to 6.5x10^5, and the angle--of--attackrange is -12° to 12°. The comparisons of experimental results show that: tail tailoring canincrease both airfoil lift and lift--to--drag ratio in the positive angle--of--attack range; it candecrease airfoil drag in the negative angle--of--attack range.