【摘要】 文章介绍一种用于模拟街谷流场和温度场的动力学模式和热力学模式。应用动力模式模拟了方柱体塔楼和圆柱体塔楼形成的流场 ,应用动力和热力模式模拟了街谷中流场和温度场的日变化过程。计算实例表明 ,上述模式可用于城市街谷和建筑群风环境和热力环境研究以及街谷中空气污染物传输和扩散的计算更多还原

【Abstract】 A dynamic submodel and a thermodynamic submodel are developed to simulate the flow fields and thermal structure of a street canyon. The bluff body flow fields for a prism tower building and a column building, respectively, in the neutral flow are calculated. The diurnal variation of wind and temperature fields over a three dimensional street canyon is simulated. These case studies indicate that the model system above can be used for investigating the wind and thermal environment and the processes of air pollution transportation and diffusion over a street canyon or a group of buildings.更多还原