Neighborhood and wind direction effects on wind pressure distribution on the low-rise building roof

Resumo

Low-rise buildings are the majority of the houses that are constructed all over the world. Experiments
of the wind loads acting on these buildings provide vital information to design secure structures and adverse
weather conditions resistants, considering the basic parameters in the analysis of gable buildings as roof slopes
and the wind direction. This study estimated the distribution of wind pressures around the contour of buildings
with gable roofs, considering diverse neighborhood conditions such as the number and geometric configuration of
buildings on the ground, in conjunction with the different angles of wind incidence. The simulations took place
with Ansys Workbench software, and the RNG K-Epsilon turbulence model and tetrahedral mesh were employed.
The application validation of the CFD technique occurred in the double sloped pitched roof structure. The results
showed good concordance with the literature. The pressure coefficients were analyzed, and in the flow
visualization, highlighted the attachment points and the recirculation zones.