屋外熱収支シミュレーションとCFDによる熱と気流の全時刻連成解析手法の開発

抄録

This study developed the coupled analysis of heat balance and airflow by combining 3D-CAD based heat balance tool, developed by authors, with CFD, for the purpose of reproducing the distribution of air flow (wind velocity, air temperature) and surface temperature, in order to evaluate the influence of complicated spatial structures upon outdoor thermal environment in urban areas. The 3D-CAD based heat balance tool could calculate detailed distribution of surface temperature in consideration of airflow distribution. In this method, the output condition of one simulation model of each in 24 hours is made as the input condition of the other model until the calculation converges with sufficient precision. The validity of simulation was evaluated with the case study on outdoor thermal environment in the high-rise and dense traditional city in desert.