New Solutions for Aircraft Wing and Helicopter Blade Airfoils

In this paper are presented some analytical and numerical results regarding airfoil characteristics, lift coefficient improvement solutions and possible applications for airplane wing and helicopter blade. Starting from the general theory of aerodynamics and based on the CFD methods, the paper deals with the mathematical model of flow around an airfoil with a filed cavity, where a free rotational cylinder is placed in order to delay the flow separation. The numerical solutions were made in Maplesoft environment.