Numerical Simulation of Micro-atmospheric Environment by LES in a District of Beijing

摘要：

This paper investigates wind field and traffic pollutant dispersion at street level in a local urban area. A coupling method is employed between the mesoscale model weather research and forecast (WRF) for the atmospheric flow of whole city and the large eddy simulation (LES) method for local environmental flows. A combined model is proposed for building clusters in the urban area. The wind speed, temperature and carbon monoxide concentration fields are computed from 9 am of October 26 2009 to 8 am of the next day in a district of Beijing and the results show a good agreement with the observation.

关键词： large eddy simulation pollutant dispersion coupling method immersed boundary method

作者: Y. S. Liu S. G. Miao C. L. Zhang G. X. Cui Z. S. Zhang

作者单位: Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China Institute of Urban M Institute of Urban Meteorology, China Meteorological Administration, Beijing 100081, China Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China

会议类型: 国际会议

会议名称: 第六届流体力学国际会议

会议地点: 广州

会议语种:英文

页码: 392-394

在线出版日期: 2011-06-30（万方平台首次上网日期，不代表论文的发表时间）