摘要
建立了某典型住宅小区风环境的物理和数学模型 ,并应用计算流体动力学方法求解了三种来流角度下的稳态三维湍流流场 ,给出了速度、压力、湍流度参数的分布 ;分析了街区涡流、巷道风及活塞风等效应 ,研究了风压作用下建筑群的迎风及背压区 ,讨论了湍流入流边界对合理湍流分布的作用 ;
Develops a physical and mathematical model of wind environment for a typical residential quarter. Analyses the steady-state three-dimensional turbulent airflow fields in three different inflow directions by CFD. Presents the distribution of velocity, pressure and turbulivity. Analyses the effects of block eddy flow, laneway wind, piston wind, etc. Studies windward area and back pressure area of buildings under wind pressure. Discusses the influence of turbulent airflow inflow boundary on reasonable turbulent distribution. Compares the wind environment parameters at five measuring spots in different inflow directions.
出处
《暖通空调》
北大核心
2005年第1期120-125,共6页
Heating Ventilating & Air Conditioning
基金
国家自然科学基金资助项目 (编号 :5 0 40 80 19)
关键词
风环境
住宅小区
街区
建筑群
观测点
风压
湍流度
物理
角度
合理
wind environment, residential quarter, computational fluid dynamics (CFD), turbulent kinetic energy
