| 城市街道汽车排放物扩散过程的风洞试验 |
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| 引用本文： | 周洪昌,高延令.城市街道汽车排放物扩散过程的风洞试验[J].同济大学学报(自然科学版),1994,22(3):306-311. |
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| 作者姓名： | 周洪昌 高延令 |
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| 作者单位： | 同济大学道路与交通工程系，吉林工业大学交通学院 |
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| 摘 要： | 采用风洞模拟试验方法，通过１／２５０模型街道示踪气体浓度分布规律的研究，探讨了城市道路交通排放污染物的扩散过程及其与街道建筑物结构、风向及排放源强度等微观因素之间的关系，为城市道路交通大气环境质量监测，评价及防治提供了基础。
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| 关 键 词： | 城市街道 汽车 排放物 风洞试验 |
A Windtunnel Investigation on the Dispersion of Urban-Traffic-Emitted Pollutants |
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| Zhou Hongchang, Yang Peikun.A Windtunnel Investigation on the Dispersion of Urban-Traffic-Emitted Pollutants[J].Journal of Tongji University(Natural Science),1994,22(3):306-311. |
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| Authors: | Zhou Hongchang Yang Peikun |
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| Abstract: | A windtunnel investigation on the tyaffic-emitted pollutants dispersion in an urban street canyon is reported here. The investigation is concentrated on microscale factors, such as wind direction as well as architectural geometry,which have influences on the dispersion process. The similarity criteria and the experiment techniques for simulating the microscale turbulent dispersion in a bandary-layer-windtunnel is also discussed. This investigation provides physical conceptions for the dispersion model of urban-traffic-emitted pollutants. |
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| Keywords: | Road traffic pollution Street canyon Windtunnel investigation Dispersion model |
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