XIA Dong, WANG Jing, SUN Liye, et al. Numerical simulation of wind environment and outdoor comfort surrounding a typical super highrise building cluster in Zhuhai[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2019,58(4):42-52.
XIA Dong, WANG Jing, SUN Liye, et al. Numerical simulation of wind environment and outdoor comfort surrounding a typical super highrise building cluster in Zhuhai[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2019,58(4):42-52. DOI: 10.13471/j.cnki.acta.snus.2019.04.004.
CFD simulation is utilized to analyze the wind environment and outdoor comfort surrounding a typical super high-rise building cluster in Zhuhai by using a software PHOENICS with consideration of local climatic conditions. The results are as follows: 1) The direction of dominant wind changes from season to season in the research district
which is north (N) in winter
south-southwest (SSW) in summer and east-northeast (ENE) in the transitional season
resulting in the variations of the wind and comfort in down ground and building facade. 2) When the wind is blowing from the high-rise buildings to the low-rise buildings
the floor ventilation and comfort between the high-rise buildings and the low-rise buildings are poor
because of blockage effects. In the meanwhile
the well ventilated areas
for example the upwind side and both sides of the high-rise buildings
are more comfortable comparably. 3) When the wind blows from the lower buildings to the high-rise buildings
the ventilation conditions of the spaces between buildings are better
since the flows pass through the lower buildings and get amplified. And the ventilation and comfort of the facade are better in comparison with the situation when wind blows from the high-rise buildings to the low-rise buildings. 4) As the wind speed increases with the increase of height
people will feel uncomfortable in the upwind face and the corner of both sides of the high-rise buildings and the ventilation corridor
where wind speed exceeds Grade 3.
关键词
超高层建筑群风环境舒适度CFD模拟
Keywords
super high-rise building clusterwind environmentcomfort degreeCFD simulation