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【答案】应助回帖
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感谢参与，应助指数 +1
第一伙伴(lazy锦溪代发): 金币+10 2017-09-12 23:36:45
lazy锦溪: LS-EPI+1 2017-09-12 23:36:55
Research on CO dispersion of a vehicular exhaust plume using Lattice Boltzmann Method and Large Eddy Simulation
作者:Men, YZ (Men, Yuzhuo)[ 1,2 ] ; Lai, YY (Lai, Yuyang)[ 3 ] ; Dong, SZ (Dong, Suzhen)[ 3 ] ; Du, X (Du, Xin)[ 3 ] ; Liu, YH (Liu, Yihan)[ 3 ]
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
卷: 52
页: 202-214
子辑: A
DOI: 10.1016/j.trd.2017.03.012
出版年: MAY 2017
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TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
出版商 PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
ISSN: 1361-9209
研究领域 Environmental Sciences & Ecology
Transportation
摘要
The exhaust gas dispersion from the vehicles has a direct impact on human health, particularly on vehicle drivers, passengers, and people nearby. Because of the numerical implementation simplicity and well captured solution for fluid dynamics around multiple bodies, Lattice Boltzmann Method (LBM) has been adopted in lots of domains during the last two decades. This paper combines LBM together with Large Eddy Simulation (LES) turbulence model to study exhaust gas emission and dispersion characteristics. Carbon monoxide (CO) relative concentration and velocity distribution from a vehicular exhaust plume in the near-wake region is investigated for low and high idling driving conditions under different ambient wind speeds. Validation has been made to test the performance of gas simulation of the LBM-LES method in XFlow, after which 3D simulation of exhaust gas dispersion is considered, and the time-averaged CO relative concentration and velocity are analyzed. Results indicate that flow wake by ambient wind can affect the dispersion of exhaust gas. The exhaust gas moves downstream and spread to a wider range under higher ambient wind speed. While, the flow field becomes complicated due to the interflow effect when the wind speed and exhaust gas velocity are close, which enhances the dispersion characteristics of exhaust gas to a certain extent. (C) 2017 Elsevier Ltd. All rights reserved.
关键词
作者关键词:Exhaust gas dispersion; Relative concentration; LBM; LES; Pollutant; Vehicle
KeyWords Plus:NEAR-WAKE REGION; POLLUTANT DISPERSION; FLOW STRUCTURES; GAS DISPERSION; ROAD VEHICLES; WIND-TUNNEL; AUTOMATA; EQUATION; MODEL
作者信息
通讯作者地址: Liu, YH (通讯作者) SOYOTEC Ltd, Beijing, Peoples R China.
地址: [ 1 ] Changchun Inst Technol, Sch Mechatron Engn, Changchun, Peoples R China
[ 2 ] Jilin Univ, Coll Biol & Agr Engn, Changchun, Peoples R China
增强组织信息的名称
Jilin University
[ 3 ] SOYOTEC Ltd, Beijing, Peoples R China
电子邮件地址:yann.liu@soyotec.net
基金资助致谢
基金资助机构 授权号
National Natural Science Foundation of China 51378075
51678065
查看基金资助信息关闭基金资助信息
This research was supported by the funds provided by National Natural Science Foundation of China (51378075, 51678065).
出版商
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
类别 / 分类
研究方向:Environmental Sciences & Ecology; Transportation
Web of Science 类别:Environmental Studies; Transportation; Transportation Science & Technology
文献信息
文献类型:Article
语种:English
入藏号: WOS:000401398400015
ISSN: 1361-9209
其他信息
IDS 号: EU9ZO
Web of Science 核心合集中的 "引用的参考文献": 20
Web of Science 核心合集中的 "被引频次": 0
JCR® 类别 JCR 分区
ENVIRONMENTAL STUDIES Q2
TRANSPORTATION Q2
TRANSPORTATION SCIENCE & TECHNOLOGY Q2
数据来自第 2016 版 Journal Citation Reports |
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