The Blasius formula, named after Hermann Blasius, is a critical tool in boundary layer theory. It provides a mathematical formula for calculating the boundary layer thickness (δ) in laminar flow. The formula states that δ = 5x√(ν/U∞), where x is the distance from the leading edge, ν is the kinematic viscosity of the fluid, and U∞ is the free-stream velocity. This formula enables engineers and scientists to determine the thickness of the boundary layer, which is essential for understanding fluid flow behavior and designing aerodynamic shapes and heat transfer systems.
