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| 城市机动车尾气排放及道路扩散模式综述 |
| Summary of Vehicle Em ission and D iffusion M odelsin Typical Urban Streets |
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| DOI： |
| 中文关键词: 排放因子 扩散模式 城市典型道路 机动车排气 |
| 英文关键词: Emission factor Diffusion model Typicalurban streets Vehicle emission |
| 基金项目:环保公益性行业科研专项基金资助项目(200709011) |
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| 中文摘要: |
| 综述了国内外机动车排放因子模型, 基于开阔型、交叉路口型和城市峡谷型3类城市典型交通道路 , 探讨了各种机动车尾气扩散模式的优缺点和适用性。提出今后的研究重点是利用城市生态系统中的植物群落对汽车排放污染物扩散的阻碍和吸附, 探索绿化植物对机动车尾气污染扩散的阻散特征; 加强 CFD 软件在城市道路空气质量研究领域的应用; 在GIS平台下, 结合扩散模式开发环境综合管理系统。 |
| 英文摘要: |
| The emission factormodelsofvehiclesathome and abroad werereviewed based on threetypicaltypesofopen,intersection and urban gorgetraffic. Theadvantagesand disadvantageswere discussed on different vehicle exhaustdiffusion models. Theresearch emphasisin thefuture would beon the barriersand adsorption of vehicleexhaustpollutantsbyplantcommunitiesofurban ecologicalsystem and explorethe dispersion characteris ticsofvehicle exhaustpollution diffusion by green plants. Itmadethe bestofCFD softwarein research field of urban road airquality. In GIS platform,itwasdeveloped forintegrated managementsystem combined with the diffusion model. |
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