NATURAL VENTILATION HEURISTICS IN HIGH-RISE RESIDENTIAL BUILDINGS

  • YEAR
    2014
  • AUTHORS
    Omrani, Sara
    Drogemuller, Robin
    Garcia-Hansen, Veronica
    Capra, Bianca
  • CATEGORIES
    2014 Conference Papers
    Thermal Comfort Lighting & Acoustics

Extract

Complex behaviour of air flow in the buildings makes it difficult to predict. Consequently, architects use common strategies for designing buildings with adequate natural ventilation. However, each climate needs specific strategies and there are not many heuris-tics for subtropical climate in literature. Furthermore, most of these common strategies are based on low-rise buildings and their perfor-mance for high-rise buildings might be different due to the increase of the wind speed with increase in the height. This study uses Computa-tional Fluid Dynamics (CFD) to evaluate these rules of thumb for nat-ural ventilation for multi-residential buildings in subtropical climate. Four design proposals for multi-residential towers with natural venti-lation which were produced in intensive two days charrette were eval-uated using CFD. The results show that all the buildings reach ac-ceptable level of wind speed in living areas and poor amount of air flow in sleeping areas.

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