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Characteristics of Wind Forces Acting on Uncommon Tall Buildings
Faculty
Engineering
Year:
2007
Type of Publication:
ZU Hosted
Pages:
21
Authors:
Saliem Abdelaziz Saliem Anose
Staff Zu Site
Abstract In Staff Site
Journal:
Al-Azhar Engineering Ninth International Conference (AEIC IEREK
Volume:
Keywords :
Characteristics , Wind Forces Acting , Uncommon Tall
Abstract:
In the present work, a CFD model was developed to predict the flow characteristics around four different models of uncommon tall buildings. These models simulate typical actual famous tall buildings. Local and total wind forces on tall buildings are investigated in terms of the distribution of force parameters, such as pressure and drag coefficients, at different levels along the height of the building model for different wind directions. Also, the results include the streamline patterns as well as contours of Cp and turbulence kinetic energy. Results demonstrate that both the pressure and drag coefficients, for most of the studied cases, reach their maximum values (corresponding to stagnation) at 0.86 of the height of the building. Then, the values of these two coefficients decrease gradually towards the roof of the building. In the unsteady analysis, it was found that pressure takes a specified period of time to reach the steady state condition. This time period depends on the building configuration and the incoming wind direction. Interesting findings and conclusions are reported.
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