| 刘冲,彭云龙,王体健,顾聿笙,张婷婷,丁沃沃.基于WRF-CFD耦合的复杂城市形态街道通风性能模拟研究[J].装备环境工程,2019,16(6):63-71. LIU Chong,PENG Yun-long,WANG Ti-jian,GU Yu-sheng,ZHANG Ting-ting,DING Wo-wo.Simulation of Ventilation Performance of Complex Urban Forms Coupled Based on WRF-CFD[J].Equipment Environmental Engineering,2019,16(6):63-71. |
| 基于WRF-CFD耦合的复杂城市形态街道通风性能模拟研究 |
| Simulation of Ventilation Performance of Complex Urban Forms Coupled Based on WRF-CFD |
| 投稿时间：2019-02-03 修订日期：2019-06-25 |
| DOI：10.7643/ issn.1672-9242.2019.06.011 |
| 中文关键词: WRF CFD 城市 通风性能 |
| 英文关键词:WRF CFD urban ventilation performance |
| 基金项目: |
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| Author | Institution |
| LIU Chong | 1. a. School of Atmospheric Sciences, Nanjing University, Nanjing 210093, China |
| PENG Yun-long | 1. b. School of Architecture and Urban Planning, Nanjing University, Nanjing 210093, China |
| WANG Ti-jian | 1. a. School of Atmospheric Sciences, Nanjing University, Nanjing 210093, China |
| GU Yu-sheng | 1. b. School of Architecture and Urban Planning, Nanjing University, Nanjing 210093, China |
| ZHANG Ting-ting | 2. Binzhou Meteorological Bureau of Shandong Province, Binzhou 256600, China |
| DING Wo-wo | 1. b. School of Architecture and Urban Planning, Nanjing University, Nanjing 210093, China |
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| 中文摘要: |
| 目的 研究静稳天气下复杂城市形态街道的通风性能。方法 用WRF中尺度气象模式耦合CFD流体模型，通过选取冬季一次静稳天气过程，对南京市不同城市形态的街区通风性能进行分析，评价不同形态街区的通风性能，给出现有城市通风性能的状态，并对城市规划提供合理的意见。结果 静稳天气条件下，人口密集居住的住宅区，通风性能严重不足，大部分街区风速只有0.3 m/s，不利于居民的健康生活。局部区域的通风性能主要由街道的交叉口位置和街道与主导风向的位置关系决定，此次静稳天气综合型切片的中心区域通风性能明显优于中心区和住宅区。在迎风向的街谷或道路的通风性能明显，在静稳天气下能够达到2~3 m/s，很好地起到了城市通风走廊的作用。结论 合理的城市设计和建筑布局能够有效地增加局部区域，尤其是高密度地区的通风性能，有利于污染物等的扩散以及居民的健康。 |
| 英文摘要: |
| Objective To study on ventilation performance of complex urban streets in stationary weather. Methods In this paper, CFD fluid model was coupled with mesoscale meteorological model WRF. By choosing a stationary weather process in winter, the ventilation performance of different urban districts in Nanjing was compared and analyzed; the ventilation performance of different urban districts was evaluated; the existing state of urban ventilation performance was given; and rationalization suggestions for urban planning were put forward. Results Under static and stable weather conditions, the ventilation of densely populated residential areas was seriously insufficient. The wind speed of most blocks was only 0.3 m/s, which was not conducive to the healthy living of residents. The local ventilation performance was mainly determined by the location of the intersection of the street and the positional relationship between the street and the dominant wind direction. For this case, the ventilation performance of the central area of the integrated section was significantly better than that of other areas. The ventilation performance of the street or road in the windward direction was obvious, and it could reach 2-3 m/s in static weather, which played a good role of the urban ventilation corridor. Conclusion Reasonable urban design and architectural layout can effectively increase the ventilation of local areas, especially in high-density areas, which is conducive to the spread of pollutants and the health of residents. |
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