부산대학교 도서관

High building density in urban areas can lead to reduced wind speeds and the exacerbation of the heat island effect due to the obstruction caused by building heights and widths. Many cities have started implementing regulations regarding building width, ventilation rates, and openness to address these issues during the design phase. This study focuses on the impact of building width configuration and volume on urban wall effects and thermal accumulation, utilizing CFD modeling for simulation analysis. Four building layout scenarios were examined. The results highlight the significant influence of upwind buildings on the thermal accumulation and wind speeds in downstream buildings. Building setbacks, which increase building height, contribute to improved heat dissipation in the downwind area. However, taller upwind buildings also result in wind spillover to the leeward side, leading to increased temperatures. Different volume incentive schemes affect the wall effect, with higher volume incentives intensifying the wall effect and raising temperatures on the leeward side. In comparison, reducing building depth proves more effective in overall cooling and reducing thermal accumulation on the leeward side. These findings emphasize the need to consider building width and volume in relation to ventilation and thermal effects. It is recommended that future urban planning and design take into account the impact of building volume on leeward-side thermal accumulation and explore alternative approaches to enhance ventilation rates and mitigate the adverse effects of thermal accumulation.