Abstract: Alternate power law velocity profile u+=Aζα in transitional rough pipe fully turbulent flow, has been proposed, in terms of new appropriate inner rough wall variables (ζ=Z+∕ϕ, uϕ=u∕ϕ), and new ...

Abstract: The power law velocity profile has been analyzed in terms of the envelope of the friction factor which gives the friction factor log law. The power law index