The control of naturally ventilated buildings subject to wind and buoyancy

Ben Lishman, Andrew W. Woods

    Research output: Contribution to journalArticlepeer-review


    The competition between wind and buoyancy forces acting on a naturally ventilated building with one upwind and one downwind opening and a distributed heat source can lead to multiple steady states. This study considers the impact of a second downwind opening on the existence of these multiple steady states. It is found that if this new opening exceeds a critical area, then the multiple steady states are eliminated, and the transition from buoyancy to wind dominated flow is continuous. This critical area is shown to be a function of the relative heights of the three windows. The predictions of the model are in accord with new laboratory experiments, and the implications for building design are discussed.
    Original languageEnglish
    Pages (from-to)451-471
    JournalJournal of Fluid Mechanics
    Publication statusPublished - 12 Jun 2006


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