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Modelling fluctuating airflow through large openings.

Fluctuating airflow thorough buildings is caused by temporal and spatial variations of wind-induced pressures around building envelopes, and include pulsating airflow and eddy penetrations. Two approaches using a multi-zone pulsating airflow model are introduced in this paper to study the eddy penetration and multi-way airflow through large openings. In the first approach, the eddy flow is considered to be caused by imperfect correlations among pressures at different points of an opening.

Air flow through large openings: experimental study of the discharge coefficient.

Analysis of air transfer between different zones of a building through large openings. Presentation of a simulation conducted on the test cell MINIBAT, aimed at better understanding these phenomena.

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