Turbulence intensity and the friction factor for smooth- and rough-wall pipe flow

Abstract

Turbulence intensity profiles are compared for smooth- and rough-wall pipe flow measurements made in the Princeton Superpipe. The profile development in the transition from hydraulically smooth to fully rough flow displays a propagating sequence from the pipe wall towards the pipe axis. The scaling of turbulence intensity with Reynolds number shows that the smooth- and rough wall level deviates with increasing Reynolds number. We quantify the correspondence between turbulence intensity and the friction factor.

Cited by in corpus (4)

• Unified Friction Formulation from Laminar to Fully Rough Turbulent Flow
• Turbulence Intensity Scaling: A Fugue
• Scaling of global properties of fluctuating and mean streamwise velocities in pipe flow: Characterisation of a high Reynolds number transition region
• Extrapolation of Turbulence Intensity Scaling to $R{e}_{\tau }\gg 10^5$