Knowledge Management System Of Institute of Earth Environment, CAS
| Numerical simulation of the effects of canopy properties on airflow and pollutant dispersion in street canyons | |
| Wang, Le1,2; Tian, Wen-Xin3; Zhao, Xiu-Yong3; Huang, Chuan-Qing4 | |
| 通讯作者 | Huang, Chuan-Qing(huangcq@sust.edu.cn) |
| 2021-04-27 | |
| 发表期刊 | INDOOR AND BUILT ENVIRONMENT
 |
| ISSN | 1420-326X |
| 页码 | 13 |
| 摘要 | The air flow and pollutant concentration fields in a street canyon affected by trees could affect the comfort and health of residents. At present, the description of the non-uniform/discontinuous distribution of leaves is difficult. In this study, the leaf distribution in the canopy was characterized by establishing non-continuous (uniform/random) algorithm based on a numerical simulation method, and the effects of canopy properties including, height, porosity and uniform/random leaf distribution, on the airflow and pollutant concentration fields in urban street canyons were investigated. The position of the tree canopy was found to directly affect the airflow field form and the air velocity distribution in the street canyon at low inflows. The average air velocity in the street canyon could be reduced significantly when the top of the tree canopy is near the top of the street canyon. The air velocity and pollutant concentration in the street canyon would vary only slightly due to the canopy porosity. Due to the increasing canopy porosity, the air velocity would increase, and the pollutant concentration would be reduced. The leaves are non-continuous and uniformly distributed at constant porosity, which does not significantly change the velocity distribution and pollutant concentration in the street canyon. |
| 关键词 | Street canyon airflow field air velocity numerical simulation tree crowns tree canopy canopy porosity |
| DOI | 10.1177/1420326X211005174 |
| 关键词[WOS] | LARGE-EDDY SIMULATION ; WIND-TUNNEL ; AVENUE-TREES ; URBAN ; ENVIRONMENT ; QUALITY ; IMPACT |
| 收录类别 | SCI ; SCI |
| 语种 | 英语 |
| 资助项目 | State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG2034] ; Key Laboratory of Ocean Energy Utilization and Energy Conservation (Dalian University of Technology), Ministry of Education[LOEC-202010] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Public, Environmental & Occupational Health |
| 项目资助者 | State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS ; Key Laboratory of Ocean Energy Utilization and Energy Conservation (Dalian University of Technology), Ministry of Education |
| WOS类目 | Construction & Building Technology ; Engineering, Environmental ; Public, Environmental & Occupational Health |
| WOS记录号 | WOS:000651167900001 |
| 出版者 | SAGE PUBLICATIONS LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/16437 |
| 专题 | 黄土与第四纪地质国家重点实验室（2010~） |
| 通讯作者 | Huang, Chuan-Qing |
| 作者单位 | 1.Xian Shiyou Univ, Mech Engn Coll, Xian, Peoples R China 2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian, Peoples R China 3.State Environm Protect Key Lab Atmospher Phys Mod, Nanjing, Peoples R China 4.Shaanxi Univ Sci & Technol, Coll Chem & Chem Engn, Xian 710021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Le,Tian, Wen-Xin,Zhao, Xiu-Yong,et al. Numerical simulation of the effects of canopy properties on airflow and pollutant dispersion in street canyons[J]. INDOOR AND BUILT ENVIRONMENT,2021:13. |
| APA | Wang, Le,Tian, Wen-Xin,Zhao, Xiu-Yong,&Huang, Chuan-Qing.(2021).Numerical simulation of the effects of canopy properties on airflow and pollutant dispersion in street canyons.INDOOR AND BUILT ENVIRONMENT,13. |
| MLA | Wang, Le,et al."Numerical simulation of the effects of canopy properties on airflow and pollutant dispersion in street canyons".INDOOR AND BUILT ENVIRONMENT (2021):13. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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