城市街区内污染物扩散数值模拟研究综述

s the increase of air pollution and people’s higher request of life quality, the environment condition of urban district become much more important today. Researchers have done lots of researches, using field survey, physical modeling and numerical simulation. Of which the most powerful method is numerical simulation, profits from its low cost and high efficiency. This paper reviews the main methods of research of air flow and pollution diffuse in urban district, describes the actuality and evolvement of numerical simulation, summarizes the characters of air flow and pollution diffuse in urban district, and gives expectation and assumption.