Power Type Velocity Distribution Formula and Skin Friction Laws for Wall Turbulence: (Ⅰ) Hydraulic Rough Region

Based on a new incomplete simiarity assumption of the simiarity theory and the classic Nikuradere experimental data,a power-type velocity distribution formula is proposed for turbulent flow in hydraulic rough region.Corresponding to the new formula,skin-friction laws for turbulent flow in hydraulic rough region in open channels and pipes are presented.