In incompressible laminar flow over a flat plate, the local skin-friction coefficient (Cf) is a dimensionless parameter that quantifies the skin-friction drag experienced by the flat plate at a specific location along its surface. It represents the tangential drag force per unit area acting on the surface of the flat plate due to the fluid’s viscous effects.Â
- Cf: Local skin-friction coefficient (dimensionless).
- Rex: Reynolds number based on the distance from the leading edge (x) of the flat plate to the specific location (dimensionless).