Abstract
Pedestrian-level wind conditions in residential areas are closely related to the quality of urban residents' daily life. In this paper, seven representative building layouts of urban residential areas were summarized from actual residential areas of Harbin, and wind tunnel experiments were carried out to study the pedestrian-level wind comfort in these residential areas. The assessments of pedestrian wind comfort are performed by combining the wind tunnel results and long-term local wind statistics. The results show that the hybrid-type and the enclosed-type layouts can provide better pedestrian wind comfort than parallel-type layouts, and the building heights of residential areas need to be controlled in cities of severe cold regions.
Highlights
Wind conditions at the pedestrian-level in residential areas play an important role in the dispersion of pollutants around buildings, efficiency of natural ventilation, and wind and thermal comfort of pedestrians
Studies on the simplified models can provide a fundamental understanding of the wind flow pattern around the cubic models with a regular configuration, such as symmetrical or staggered layout
Seven representative building layouts of urban residential areas were summarized from actual residential areas in Harbin, one of the major cities in severe cold regions of China
Summary
Wind conditions at the pedestrian-level in residential areas play an important role in the dispersion of pollutants around buildings, efficiency of natural ventilation, and wind and thermal comfort of pedestrians. A great amount of research has been carried out to assess the wind conditions at the pedestrian-level around buildings [1,2,3] These studies show that the pedestrian-level wind flow pattern around buildings is complicated and closely related to various factors, such as the dimensions, shape and configuration of buildings, the building coverage ratio, the upstream terrain conditions, and the wind directions. The layouts in these studies are mainly simplified models. The actual urban morphology is considerably complicated, which implies that the research results of the simplified models with regular configurations cannot reflect the actual urban wind environment
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