高层建筑周围行人风环境数值模拟(英文)  

Numerical Simulation of Pedestrian Level Winds around Tall Buildings

作　　者：王宝民[1] 刘辉志[2] 桑建国[3] 吴国昌[4] 张伯寅[5] 

机构地区：[1]中山大学大气科学系,广州510275 [2]中国科学院大气物理研究所LAPC,北京100029 [3]北京大学大气科学系,北京100871 [4]北京大学环境学院,北京100871 [5]北京大学湍流和复杂系统国家重点实验室,北京100871

出　　处：《中山大学学报（自然科学版）》2007年第2期102-104,109,共4页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：中国科学院大气物理研究所LAPC开放课题;中山大学青年教师科研启动基金共同资助项目

摘　　要：采用基于k-ε湍流闭合方法的数值模式对高层建筑周围行人风场进行模拟,与风洞实验结果吻合。数值模式能够在每一个计算格点和每一个时间段提供流场的详细信息,因而,在准确评价行人风环境或者其他风环境问题上比风洞实验更具优势。随着计算技术的提高,数值模拟已变得更为快速经济,并成为研究城市风环境的有效手段。A three-dimensional non-hydrostatic numerical model based on k -ε turbulence closure has been used to simulate the pedestrian wind fields around the proposed tall buildings in Beijing. The model results are well agreed with those of the wind tunnel experiments. Since numerical model can provide the detailed flow field data, it has a great advantage compared with the wind tunnel experiment in accurately evaluating the wind effects on pedestrian. Furthermore, advance computational technology has made the numerical modeling become fast and cheap. It is believed that the numerical simulation will play an increasingly more important role in the coming years.

关 键 词：数值模式 行人风环境 风洞 

分 类 号：P404[天文地球—大气科学及气象学]