Three-component, time-resolved velocity statistics in the wall region of a turbulent pipe flow

A. A. Fontaine, S. Deutsch

    Research output: Contribution to journalArticlepeer-review

    11 Scopus citations

    Abstract

    Three-component, coincident, time-resolved velocity measurements were obtained in the near wall region, y+ < 100, of a fully developed turbulent pipe flow. The measurements were conducted in the ARL/PSU glycerin tunnel at a Reynolds number (Reh), based on pipe radius and centerline velocity, of 6436 and an Reθ of approximately 730. The reported data include velocity statistics up to fourth order, Reynolds stresses and three component, coincident turbulent velocity spectral estimates. The current data are generally in quite good agreement with the fully developed channel flow direct numerical simulation (DNS) results of Antonia et al. (1992) at Reθ ≃ 700 ∼- 700. The accuracy of the current experimental data and the very good agreement with the DNS results provides evidence for the accuracy of the DNS solutions and thus Antonia's conclusions of very near wall, y+ < 20, Re dependence on turbulent velocity statistics. The very good agreement between the low Re rectangular channel flow DNS results and the low Reθ flat plate turbulent boundary layer statistics of Karlsson and Johansson (1988) suggests that for y+ < 30 statistics of similar flows of differing geometry may be compared on the basis of equal Reθ. The current data are available on disk or by anonymous ftp by the first author.

    Original languageEnglish (US)
    Pages (from-to)168-173
    Number of pages6
    JournalExperiments in Fluids
    Volume18
    Issue number3
    DOIs
    StatePublished - Jan 1995

    All Science Journal Classification (ASJC) codes

    • Computational Mechanics
    • Mechanics of Materials
    • General Physics and Astronomy
    • Fluid Flow and Transfer Processes

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