Airborne pollutant dilution inside the deep street canyons subjecting to thermal buoyancy driven flows: Effects of representative urban skylines

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成果类型：

期刊论文

作者：

Mei, Shuo-Jun;Hu, Jiang-Tao;Liu, Di*;Zhao, Fu-Yun*;Li, Yuguo;...

通讯作者：

Zhao, Fu-Yun;Liu, Di

作者机构：

[Hu, Jiang-Tao; Zhao, Fu-Yun; Mei, Shuo-Jun] Wuhan Univ, Key Lab Hydraul Machinery Transients, Minist Educ, Wuhan, Hubei, Peoples R China.

[Hu, Jiang-Tao; Zhao, Fu-Yun; Mei, Shuo-Jun] Wuhan Univ, Shenzhen Res Inst, Shenzhen, Guangdong, Peoples R China.

[Hu, Jiang-Tao; Zhao, Fu-Yun; Mei, Shuo-Jun] Wuhan Univ, Sch Power & Mech Engn, Dong Hu South Rd, Wuhan 430072, Hubei, Peoples R China.

[Liu, Di] China Univ Petr, Coll Pipeline & Civil Engn, Qingdao, Shandong, Peoples R China.

[Li, Yuguo] Univ Hong Kong, Dept Mech Engn, Pokfulam Rd, Hong Kong, Peoples R China.

通讯机构：

[Zhao, Fu-Yun] W

[Liu, Di] C

Wuhan Univ, Sch Power & Mech Engn, Dong Hu South Rd, Wuhan 430072, Hubei, Peoples R China.

China Univ Petr, Coll Pipeline & Civil Engn, Qingdao, Shandong, Peoples R China.

语种：

英文

关键词：

Pollutant retention time;Thermal boundary layer flows;Thermal plume merging;Thermally-driven canyon ventilation;Urban morphology

期刊：

Building and Environment

ISSN：

0360-1323

年：

2019

卷：

149

页码：

592-606

DOI：

10.1016/j.buildenv.2018.12.050

基金类别：

Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [51778504, 51304233, 51208192]; Fundamental Research Projects from Shenzhen Government [JCYJ20160523160857948]; National Key Research and Development Program of the Ministry of Science and Technology of China [2018YFC0705201, 2018YFB0904200]; Collaborative Innovation Center for Building Energy Conservation and Environment Control, Hunan Province

机构署名：

本校为其他机构

院系归属：

土木工程学院

摘要：

The air flow and pollutant dispersion within a group of street canyons ventilated merely by thermal buoyancy force induced by heated building surfaces are examined by CFD model using SST k-ω turbulence model for different urban skyline configurations. Pollutants emitted from the bottom of street canyon roughly mimic the traffic exhaust releasing. Numerical results are validated well with former theoretical results on thermal boundary flow adjacent to a heated vertical wall. The air exchange rate per hour (ACH) and pollutant retention time are ...

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Airborne pollutant dilution inside the deep street canyons subjecting to thermal buoyancy driven flows: Effects of representative urban skylines

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