Simulating the sheltering effects of windbreaks in urban outdoor open space

Wei Li, Fan Wang, Simon Bell

    Research output: Contribution to journalArticlepeer-review

    31 Citations (Scopus)

    Abstract

    This paper presents a numerical and experimental study of wind environment in an urban open space containing windbreaks and buildings. The sheltering effects of windbreaks on outdoor open spaces has been investigated regarding their physical properties, such as porosity and locations. A selection of turbulence models and discretization schemes has also been evaluated in the CFD simulations in order to create a suitable module to simulate airflow in a domain containing both porous objects and bluff bodies. The result shows that the combination of the KE-two-layer model and SMART discretization scheme provides satisfactory accuracy to the modelling with affordable computing resources. It also shows that the effect of buildings on the flow regime behind windbreaks is significant, equivalent to the porosity of windbreaks when the outdoor space is comparatively small in proportion to the height of the windbreaks. © 2006 Elsevier Ltd. All rights reserved.

    Original languageEnglish
    Pages (from-to)533-549
    Number of pages17
    JournalJournal of Wind Engineering and Industrial Aerodynamics
    Volume95
    Issue number7
    DOIs
    Publication statusPublished - Jul 2007

    Keywords

    • CFD
    • Shelterbelt
    • Urban open space
    • Wind tunnel
    • Windbreak

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