Numerical Study of the Indoor Environmental Conditions of a Large Athletic Hall Using the CFD Code PHOENICS |
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Authors: | O I Stathopoulou V D Assimakopoulos |
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Institution: | (1) Department of Applied Physics, Faculty of Physics, University of Athens, Building Physics 5, University Campus, Zografou, 157 84 Athens, Greece;(2) Institute for Environmental Research and Sustainable Development, National Observatory of Athens, I.Metaxa and V.Pavlou Str., P.Penteli, 152 36 Athens, Greece |
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Abstract: | This study investigates, experimentally and numerically, the environmental conditions prevailing in a large mechanically ventilated
athletic hall, with the aid of the computational fluid dynamics code PHOENICS. The indoor space of the building was simulated
in the PHOENICS environment and the model results were validated against experimental data collected during a 10-day campaign
in the hall. The measurements included airflow characteristics and pollutants concentrations at different locations of the
indoor space, as well as surface temperatures of the indoor materials. Having obtained good agreement between experimental
and numerical results, different scenarios were applied in the model to investigate the environmental conditions prevailing
in the hall under different ventilation and occupational conditions. These regard air-conditioning, heating, and cooling modes,
as well as empty and full hall during an athletic event. The airflow, temperature, and CO2 concentration fields were studied and results revealed dynamic behavior of the fields, significantly altering with the different
considered cases. The airflow patterns were characterized by distinct vortices of various sizes, originating from the ceiling
air inlet fans of the heating–ventilating–air conditioning system, while temperature and pollution stratification were evident,
indicating ineffective performance of the ventilation system. |
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Keywords: | " target="_blank"> Keyword Large enclosure Athletic halls CFD model Indoor conditions IAQ |
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