What is stall in aerodynamics?

Stall in aerodynamics refers specifically to a condition where the smooth airflow over the wing of an aircraft is disrupted, leading to a separation of the airflow from the wing's upper surface. When this occurs, the wing can no longer produce sufficient lift to support the weight of the aircraft. The critical angle of attack reduces lift, and the airflow separation directly impacts the aerodynamic forces acting on the aircraft.

Understanding stall is crucial for pilots, as it can happen at varying speeds and angles of attack, not just at high speeds or during takeoff. Recognizing the signs of stall and knowing how to recover from it is essential for safe flight operations. This concept highlights the importance of maintaining an appropriate angle of attack during flight to ensure consistent lift generation.