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

Nils T. Basse

doi:10.3390/fluids2020030

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arXiv · 1612.08540

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

Nils T. Basse

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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.

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Nils T. Basse. 2017-04-24. Turbulence intensity and the friction factor for smooth- and rough-wall pipe flow. https://doi.org/10.3390/fluids2020030

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