Evaluation of pedestrian space in summer season using CFD analysis of outdoor thermal environment coupled with multifractional human thermoregulation model

In this paper, a field observation and a numerical analysis are outlined in order to investigate the inhomogeneous and unsteady thermal environment in outdoor space in summer season. The aims of the observation are to investigate effects of the transition of environmental conditions on pedestrian thermal comfort, and to collect meteorological data which are used for initial and boundary conditions on the numerical analysis. Spatial distributions of airflow, temperature, radiation, humidity, and thermal comfort index are calculated in the numerical analysis. By investigating results of field observation and the numerical analysis, it was confirmed that the high effectiveness of incorporating the distributions of environmental conditions around pedestrians.