| 含信号控制人行横道的街道峡谷污染物扩散三维数值模拟 |
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| 引用本文： | 幸鸿,徐伟嘉,蔡铭,刘永红.含信号控制人行横道的街道峡谷污染物扩散三维数值模拟[J].环境科学学报,2011,31(10):2102-2108. |
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| 作者姓名： | 幸鸿 徐伟嘉 蔡铭 刘永红 |
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| 作者单位： | 1. 中山大学工学院,广州510275／广东省智能交通系统重点实验室,广州510275
2. 广东省智能交通系统重点实验室,广州510275／中山大学先进技术研究院,广州510275 |
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| 基金项目： | 国家自然科学基金(No. 50808181) |
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| 摘 要： | 耦合微观交通仿真和机动车尾气排放模型,分别对含信号控制人行横道和不含信号控制人行横道的街道峡谷污染物排放进行计算,并以此为排放源,采用k-ε两方程模型与组分输运方程对风向与街道垂直时的污染扩散情况进行了三维数值模拟.结果表明,k-ε两方程模型与组分输运方程可以较好地模拟风向与街道垂直时三维街道峡谷内的污染物扩散情况.峡...
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| 关 键 词： | 街道峡谷 人行横道 机动车尾气污染 三维扩散 数值模拟 |
| 收稿时间： | 1/5/2011 12:00:00 AM |
| 修稿时间： | 4/7/2011 12:00:00 AM |
Three-dimensional numerical modeling of pollutant dispersion in urban street canyon with signals for pedestrians crossing |
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| XING Hong,XU Weiji,CAI Ming and LIU Yonghong.Three-dimensional numerical modeling of pollutant dispersion in urban street canyon with signals for pedestrians crossing[J].Acta Scientiae Circumstantiae,2011,31(10):2102-2108. |
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| Authors: | XING Hong XU Weiji CAI Ming and LIU Yonghong |
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| Institution: | 1. School of Engineering,Sun Yat-sen University,Guangzhou 510275;2. Guangdong Provincial Key Laboratory of Intelligent Transportation System,Guangzhou 510275,1. Guangdong Provincial Key Laboratory of Intelligent Transportation System,Guangzhou 510275;2. Institute of Advanced Technology,Sun Yat-sen University,Guangzhou 510275,1. School of Engineering,Sun Yat-sen University,Guangzhou 510275;2. Guangdong Provincial Key Laboratory of Intelligent Transportation System,Guangzhou 510275 and 1. School of Engineering,Sun Yat-sen University,Guangzhou 510275;2. Guangdong Provincial Key Laboratory of Intelligent Transportation System,Guangzhou 510275 |
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| Abstract: | |
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| Keywords: | street canyon pedestrians crossing vehicle exhaust pollution three-dimensional dispersion numerical modeling |
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