Strömungsabriss
Strömungsabriss, often translated as stall in English, is a phenomenon that occurs in fluid dynamics when the flow of the fluid over a surface separates from that surface. This separation typically happens when the angle of attack, the angle between the oncoming flow and the chord line of an airfoil or wing, becomes too large. As the angle of attack increases, the air pressure on the upper surface of the wing rises, and the air velocity decreases. Eventually, the airflow can no longer follow the contour of the wing and detaches, creating turbulent eddies and a significant reduction in lift.
The consequences of strömungsabriss depend on the context. In aviation, a stall can lead to a loss