Scaling of turbulence intensity for low-speed flow in smooth pipes

C.J.J. Russo, Nils T. Basse

    Research output: Contribution to journalArticleScientificpeer-review

    49 Citations (Scopus)


    In this paper, we compare measured, modelled, and simulated mean velocity profiles. Smooth pipe flow simulations are performed for both incompressible (below Mach 0.2) and compressible (below Mach 0.1) fluids. The compressible simulations align most closely with the measurements. The simulations are subsequently used to make scaling formulae of the turbulence intensity as a function of the Reynolds number. These scaling expressions are compared to scaling derived from measurements. Finally, the found compressible scaling laws are used as an example to show how the flow noise in a flowmeter is expected to scale with the mean flow velocity.

    Original languageEnglish
    Pages (from-to)101-114
    Number of pages14
    JournalFlow Measurement and Instrumentation
    Publication statusPublished - 1 Dec 2016


    • CFD simulations
    • Flow in smooth pipes
    • Flowmeters
    • Incompressible and compressible flow
    • Princeton Superpipe measurements
    • Semi-empirical modelling
    • Turbulence intensity scaling

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