建筑布局对空间舒适性影响的数值模拟

Numerical Simulation of Impact of Building Layout on Spatial Comfort

摘要:

采用RNG kε湍流模型对某培训中心建筑群的环境风场和压力场进行数值模拟.结果表明，考虑了季节主导风向的半围合式布局设计，有效地保证了夏季通风和冬季保暖，有利于学员户外运动；建筑物迎、背风面压差随高度变化呈现明显的差异，一些楼层的角隅处需要辅助通风手段改善室内空气品质.结合风速、风压、空气龄等指标分析建筑环境的舒适性，对建筑风环境的改善及建筑节能有一定的参考意义.

Abstract:

The airflow and pressure around buildings of a typical training center were simulated using RNG kε turbulence models. The results show that considering the prevailing wind direction in different seasons, the semi closed layout is good for ventilation in summer and keeping warm in winter, which benefits outdoor activities. The pressure differences between windward facade and leeward facade fluctuates significantly with the change of height, so the corners of certain floors need auxiliary means to improve the room ventilation. Based on the analysis of wind velocity, pressure and air age around the buildings, some suggestions are offered to the improvement of resident comfort and building energy conservation.