Studies for Preventing the Impact of Climate Changes Upon Built Environment
Tomme: LXI (LXV) Fascicle: 2 | 2015
Pages: 61-74
Abstract text:
Current climate changes correlated with development of urban areas on large scales, often exposing the communities to unanticipated consequences caused by extreme manifestations of natural phenomena produced by intensification of wind action. These climate challenges have prompted an increase of studies regarding the effects of random wind action on construction and the built environment. The paper summarizes some of the experiments performed in turbulent boundary layer wind tunnel, in parallel with numerical simulation techniques, developed lately with the purpose of refining the process of modelling at reduced scale in laboratory and also of advancing on the analytical directions of study of the wind flow in boundary atmospheric layer. These studies helped to enrich the information from standards, regarding the fluctuating pressure distributions on the surface of tall buildings or other important structures with atypical geometry, the movement of the air flow at the ground level with notable consequences for outdoor activities, the uneven snowdrift on rooftops and also on the traffic infrastructure during the winter deposits resulting in more accurate and realistic design loads from snow.
Key Words:
wind action; boundary layer wind tunnel; numerical simulations; snow action; pedestrian comfort.
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