北京南站高架层环形车道汽车尾气计算机模拟分析

Computer simulation and analysis of automobile exhaust gas in elevated annular traffic lanes of Beijing South Railway Station

通过CFD模拟计算给出了北京南站高架层环形车道夏季最不利条件下各区域的空气品质。结合国家标准《环境空气质量标准》和香港环保署颁布的《半封闭式公共交通换乘站地区空气污染控制》要求,分析了环形车道内的污染物浓度分布,认为其空气品质基本满足安全卫生要求。根据模拟计算给出了新风取风口的设置位置。

Simulates the air quality of different regions in the elevated annular traffic lanes in summer under extremely adverse environmental condition with the CFD software.Starting with requirements specified in the national standard GB 3095-1996 Ambient air quality standard and the ProPECC PN 1/98 Control of air pollution in semi-confined public transport interchanges,analyses the concentration distribution of contaminants and considers that the air quality of the elevated annular traffic lanes can basically satisfy the safety and health requirements.Based on the simulated result gives the set position of fresh air intakes.