How would an increase in building heights (say from 50m to 80m0 will effect the wind speed and wind ventilation? I did not find any significant difference in an analysis of wind speed of two 3D building models (one is current and the other with increased heights of few buildings). How increase in building height effect the urban micro-climate ?
Please read the enclosed article!
http://www.aivc.org/sites/default/files/airbase_3720.pdf
According to the boundary layer in urban environment, with increase height, pressure and wind velocity increase too. therefore wind aerodynamic effect on building (Drag Force) and Reynolds number will be increase. So. With more height, plan areas reduced (is called setback shape) (Parker & Wood, 2013). you can evaluate and analysis wind effect on tall building, use the Ansys Fluent software.
Parker. D and Wood. A. (2013). "The Tall Buildings Reference Book." First published, Routledge, Taylor & Francis Group, USA.
According to engineering information I had read before Whenever the wind is quick and the building is high, the architect is required to use light materials such as the metal and choose a building design that facilitates the passage of wind
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