The control of naturally ventilated buildings subject to wind and buoyancy

Lishman, B. and Woods, A. W. (2006) The control of naturally ventilated buildings subject to wind and buoyancy. Journal of Fluid Mechanics, 557. pp. 451-472. DOI 10.1017/S0022112006009931

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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.

Item Type: Article
Uncontrolled Keywords: 2006 AREP IA51 2006 P BPI
Subjects: 99 - Other
02 - Geodynamics, Geophysics and Tectonics
Divisions: 99 - Other
Journal or Publication Title: Journal of Fluid Mechanics
Volume: 557
Page Range: pp. 451-472
Identification Number: 10.1017/S0022112006009931
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:02
Last Modified: 23 Jul 2013 10:07
URI: http://eprints.esc.cam.ac.uk/id/eprint/477

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