In laminar, incompressible flow, the flat plate skin-friction drag coefficient (Cf) is a dimensionless parameter that quantifies the amount of skin-friction drag experienced by a flat plate immersed in the fluid. Skin-friction drag is a type of drag force that results from the interaction between the fluid and the solid surface of the flat plate, and it is one of the major components of total drag on the flat plate.Â
- Cf: Flat plate skin-friction drag coefficient (dimensionless).
- Rec: Reynolds number based on the length of the flat plate (dimensionless)