Incorporation of computational fluid dynamics into the effect of building layout on the wind environment-A case study of Shezi island in Taipei

Building Information Modeling (BIM) spans the whole programming-to- operation time-span about a building life cycle. BIM allow for better integration of design processes, allowing data feedback with performance analysis stage and design stage that is equivalent to having a team of analyst consultants assessing your design. Due to the importance of the wind environment in the performance of BIM, this study using computational fluid dynamics (CFD) done by Ecotect Analysis software simulating, studied the building layout of Shezi Island in Taiwan, and drafted out urban design guideline based on analysis of urban ventilation design generated by building layout and its effect on building wind environment. The results can feedback to the planner and designer to modify the layout of buildings to have a more comfortable and energy saving new town. This research based on methods of the simulations obtained numerical predictions of flow characteristics around the buildings for studying the wind field of the Shezi Island performed. The dimensions of calculation domain were 771 m long, 624 m wide and 150 m high. Result of simulations showed that the layout characterized by street block type in the open space generated change of wind environment, high wind velocity, and therefore affected the residents' activities and psychological feelings.