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Coupled Outdoor and Indoor Airflow Prediction for Buildings Using Computational Fluid Dynamics (CFD)

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Author(s): Mohd Farid Mohamed | Steve King | Masud Behnia | Deo Prasad

Journal: Buildings
ISSN 2075-5309

Volume: 3;
Issue: 2;
Start page: 399;
Date: 2013;
Original page

Keywords: CFD simulation | empirical models | ventilation | building

ABSTRACT
The objective of this study is to investigate the accuracy of Computational Fluid Dynamics (CFD) for simultaneously predicting the outdoor and indoor airflows of single-cell and multi-storey buildings. Empirical models and two existing wind tunnel experimental data are used for validation. This study found that coupled CFD simulations provide sufficiently accurate airflow predictions and, in cases of buildings with complex fa├žade treatments, accurately accounts for changes in ventilation performance, which may be impossible using empirical models. This study concludes that coupled CFD simulations can generally be used to predict ventilation performance in small and large buildings.

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