街道峡谷内汽车排放污染物浓度分布的观测与数值模拟

叶春; 王嘉松; 李新令; 周校平; 黄震

环境化学

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叶春, 王嘉松, 李新令, 周校平, 黄震. 街道峡谷内汽车排放污染物浓度分布的观测与数值模拟[J]. 环境化学, 2006, 25(3): 363-366.

引用本文:

叶春, 王嘉松, 李新令, 周校平, 黄震. 街道峡谷内汽车排放污染物浓度分布的观测与数值模拟[J]. 环境化学, 2006, 25(3): 363-366.

YE Chun, WANG Jia-song, LI Xin-ling, ZHOU Xiao-ping, HUANG Zhen. FIELD MEASUREMENT AND NUMERICAL SIMULATION FOR POLLUTANT DISPERSION FROM VEHICULAR EXHAUST IN STREET CANYON[J]. Environmental Chemistry, 2006, 25(3): 363-366.

Citation:

街道峡谷内汽车排放污染物浓度分布的观测与数值模拟

1.
上海交通大学机械与动力工程学院, 上海, 200030
基金项目:
国家自然科学基金(50208011)资助项目

FIELD MEASUREMENT AND NUMERICAL SIMULATION FOR POLLUTANT DISPERSION FROM VEHICULAR EXHAUST IN STREET CANYON

1.
School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai, 200030, China
Fund Project:

摘要: 在上海某典型街道峡谷内按一定的空间布点,在一定时段内同时对各布点进行采样并做一氧化碳浓度分析,同时记录车辆种类、车流量、气象条件等,分析街道峡谷内污染物浓度的分布.运用风向频率加权(WDFW)方法,结合大气流动和污染物扩散的CFD模型进行数值模拟计算.结果表明,数值模拟结果和现场观测结果较吻合,建筑物低的一侧污染物浓度远高于建筑物高的一侧污染物浓度,两侧的污染物浓度随着高度的增加而降低.
- 风向频率 /
- 汽车尾气 /
- 数值模拟 /
- 现场实验
Abstract: A field measurement in a street canyon in Shanghai was conducted for analyzing the concentration of CO in several locations at both sides of the street.Traffic parameters,topography and meteorological parameters were simultaneously measured.CFD numerical simulation coupling with the wind direction frequency weighted(WDFW) method was carried out based on the conditions that were measured.It was shown that the simulated results have a good agreement with the field experimental data and the concentration of CO at the side of the lower building is much higher than that of the higher building,and the concentration of CO at both sides(decreases) with the increase of the height of the buildings.
- wind direction frequency /
- vehicular exhaust /
- numerical simulation /
- field measurement

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街道峡谷内汽车排放污染物浓度分布的观测与数值模拟

1. 上海交通大学机械与动力工程学院, 上海, 200030

基金项目:

国家自然科学基金(50208011)资助项目

关键词:

摘要: 在上海某典型街道峡谷内按一定的空间布点,在一定时段内同时对各布点进行采样并做一氧化碳浓度分析,同时记录车辆种类、车流量、气象条件等,分析街道峡谷内污染物浓度的分布.运用风向频率加权(WDFW)方法,结合大气流动和污染物扩散的CFD模型进行数值模拟计算.结果表明,数值模拟结果和现场观测结果较吻合,建筑物低的一侧污染物浓度远高于建筑物高的一侧污染物浓度,两侧的污染物浓度随着高度的增加而降低.

English Abstract

FIELD MEASUREMENT AND NUMERICAL SIMULATION FOR POLLUTANT DISPERSION FROM VEHICULAR EXHAUST IN STREET CANYON

1. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai, 200030, China

Fund Project:

Keywords:

Abstract: A field measurement in a street canyon in Shanghai was conducted for analyzing the concentration of CO in several locations at both sides of the street.Traffic parameters,topography and meteorological parameters were simultaneously measured.CFD numerical simulation coupling with the wind direction frequency weighted(WDFW) method was carried out based on the conditions that were measured.It was shown that the simulated results have a good agreement with the field experimental data and the concentration of CO at the side of the lower building is much higher than that of the higher building,and the concentration of CO at both sides(decreases) with the increase of the height of the buildings.

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街道峡谷内汽车排放污染物浓度分布的观测与数值模拟

FIELD MEASUREMENT AND NUMERICAL SIMULATION FOR POLLUTANT DISPERSION FROM VEHICULAR EXHAUST IN STREET CANYON

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街道峡谷内汽车排放污染物浓度分布的观测与数值模拟

English Abstract

FIELD MEASUREMENT AND NUMERICAL SIMULATION FOR POLLUTANT DISPERSION FROM VEHICULAR EXHAUST IN STREET CANYON

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