Prandtl's Theory

Prandtl's Theory revolutionized fluid dynamics by introducing the concept of the boundary layer— a thin region near a surface where fluid velocity transitions from zero (due to viscosity) to the free stream speed. It explains how friction affects flow, causing drag on objects, and helps analyze phenomena like airflow over wings. By focusing on this boundary layer, Prandtl's theory provides simplified equations for predicting flow behavior, essential for designing aeronautical, automotive, and engineering systems, making complex fluid interactions more understandable and manageable.