住宅建筑利用自平衡风口自然通风研究

The Study about Residential Buildings Natural Ventilation from the Balance Inlet

基于计算流体力学CFD软件,选用壁面函数法,对某住宅小区周围的风环境进行了数值模拟,并以此结果作为以自平衡风口作为通道的室内气流组织模拟的边界条件。由大环境数值模拟结果,选取两侧风压最小的1-1#房进行自然通风换气量和气流组织分析。结果表明,改变自平衡风口尺寸,够满足住宅建筑人员换气量的需求,而改变自平衡风口的入射角,室内气流组织得到明显改善。

Based on computational fluid dynamics （CFD） software, with the wall function method, the author makes a numerical simulation for the wind environment around the residential area, and uses the results as the boundary conditions of indoor airflow simulation with self-balancing inlet. The author makes a numerical simulation of the whole environment, and then selects the minimum leeway of 1-1# room for analysis of natural ventilation volume and air distribution. The results show that changing the size of the balance inlet, and meeting the residential construction workers＇ demand with natural ventilation air distribution inside will improved significantly when changing the balance inlet angle of incidence.