THREE DIMENSIONAL NUMERICAL INVESTIGATIONS OF WIND ENVIRONMENT AROUND LANQIYING BUILDINGS

摘要：

The three-dimensional wind environment in Lanqiying community of Beijing city, which is complicated due to the dense distribution of the high-rise buildings, is investigated by computational fluid dynamics method. The turbulent flow past the buildings is simulated by solving the incompressible Reynolds-averaged Navier-Stokes equations. Both the reverse flow between the buildings and the recirculation of the wake can be observed. The spectrum analysis of aerodynamics coefficient are successfully obtained and compared with the two-dimensional results. The vortex interactions with each other result in different characteristic frequencies and power values, corresponding to various-scale vortex shedding behind the buildings.

关键词： High-rise building group Vortex shedding Wind environment

作者: Chen Jianguo Liu Yi Yang Rui Shen Shifei

作者单位: Center for Public Safety Research, Tsinghua University, Beijing, 100084, China；Department of Engineering Physics, Tsinghua University, Beijing, 100084, China

会议类型: 国际会议

会议名称: 第10届建筑模拟国际会议

会议地点: 北京

会议语种:英文

在线出版日期: 2007-09-03（万方平台首次上网日期，不代表论文的发表时间）