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The control of naturally ventilated buildings subject to wind and buoyancy

  • BEN LISHMAN (a1) and ANDREW W. WOODS (a1)

Abstract

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.

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The control of naturally ventilated buildings subject to wind and buoyancy

  • BEN LISHMAN (a1) and ANDREW W. WOODS (a1)

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