办公建筑室内环境数值模拟

为了研究不同送风方式对某办公建筑会议室室内温度场、污染物浓度场及速度场的影响,利用实际测量的会议室尺寸数据建立数学模型,以监测到的相关参数作为软件模拟的边界条件,通过CFD软件对会议室采用不同送风方式进行数值模拟.分析和比较不同送风方式对会议室内温度场、污染物浓度场和速度场的影响,得出顶送风方式下温度处于23.7~25 ℃之间,甲醛浓度基本低于0.1 mg/m³,风速大部分处于0.013~0.093 m/s之间.结果表明,顶送风方式的送风效果优于侧送风方式.

Numerical simulation of indoor environment in office building

In order to study the effect of different air supply modes on the indoor temperature field, pollutant concentration field and velocity field in the conference room of an office building, the mathematical model was established based on the size of conference room obtained with the actual measurement, the relevant monitored parameters were taken as the boundary condition of numerical simulation, and the conference room under different air supply modes was simulated with the CFD software. The influence of different air supply modes on the temperature field, pollutant concentration field and velocity field in the conference room was analyzed and compared. It is found that the temperature under the top air supply mode is between 23.7 and 25 ℃, the formaldehyde concentration is basically less than 0.1 mg/m³, and the wind speed is mostly between 0.013 and 0.093 m/s. The results show that the effect of top air supply mode is superior to that of side air supply mode.