CAJ | 학술논문

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.
채용기우k-ε단류폐합방법적수치모식대고층건축주위행인풍장진행모의,여풍동실험결과문합.수치모식능구재매일개계산격점화매일개시간단제공류장적상세신식,인이,재준학평개행인풍배경혹자기타풍배경문제상비풍동실험경구우세.수착계산기술적제고,수치모의이변득경위쾌속경제,병성위연구성시풍배경적유효수단.
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.