How do airfoils affect air flow?
Drag: Friction between oncoming airflow in the boundary layer and the surface of the airfoil will produce drag, which acts to slow down the craft. The drag force is proportional to speed to first approximation in laminar flow, although the flow can become turbulent if flow separation occurs at high attack angle.
Drag: Friction between oncoming airflow in the boundary layer and the surface of the airfoil will produce drag, which acts to slow down the craft. The drag force is proportional to speed to first approximation in laminar flow, although the flow can become turbulent if flow separation occurs at high attack angle.
