Wall y + approach for dealing with turbulent flows over a wall mounted cube

S. M. Salim, M. Ariff, S. C. Cheah

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)

    Abstract

    An approach to dealing with turbulent flows over a wall mounted cube using the wall y + (non-dimensional distance from the wall) as guidance in selecting the appropriate grid configuration and corresponding turbulence models is investigated using FLUENT 6.3. The study is divided into two sections - Case I and Case II, dealing with low and high Reynolds numbers, respectively. Five turbulence models - the standard k-ε, standard k-ω, Reynolds Stress Model (RSM), Spalart-Allmaras (SA) and renormalisation group (RNG) k-ε are used to solve the closure problem. Their behaviours, together with the accompanying near-wall treatments, are investigated for wall y + covering the viscous sub-layer, the buffer layer and the log-law region'.

    Original languageEnglish
    Pages (from-to)341-351
    Number of pages11
    JournalProgress in Computational Fluid Dynamics
    Volume10
    Issue number5-6
    DOIs
    Publication statusPublished - Sep 2010

    Keywords

    • Grid generation
    • Near-wall treatment
    • Turbulent flow
    • Wall mounted cube
    • Wall y

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